The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
21st Century Fox - A COM 90130a101 176,512 6,228,387 SH   SOLE   5,708,884 0 519,503
21st Century Fox - B COM 90130a200 370,827 13,305,596 SH   SOLE   12,188,593 0 1,117,003
Accenture Plc. COM g1151c101 870,112 7,035,189 SH   SOLE   6,667,126 0 368,063
Allscripts Healthcare COM 01988P108 77,626 6,083,536 SH   SOLE   5,265,611 0 817,925
AmerisourceBergen COM 03073e105 547,686 5,793,775 SH   SOLE   5,298,362 0 495,413
Anixter Int'l. COM 035290105 93,741 1,198,732 SH   SOLE   1,032,972 0 165,760
Applied Ind. Tech. COM 03820c105 43,167 731,023 SH   SOLE   634,698 0 96,325
Armstrong World Ind. COM 04247x102 86,511 1,880,684 SH   SOLE   1,623,459 0 257,225
Arrow Electronics Inc. COM 042735100 107,915 1,376,113 SH   SOLE   1,172,413 0 203,700
Avery Dennison Corp. COM 053611109 87,023 984,758 SH   SOLE   851,953 0 132,805
Bank of NY Mellon COM 064058100 461,304 9,041,637 SH   SOLE   8,278,246 0 763,391
Berkshire Hath Cl B COM 084670702 683,345 4,034,629 SH   SOLE   3,696,302 0 338,327
Broadridge Financial COM 11133t103 108,677 1,438,290 SH   SOLE   1,240,225 0 198,065
Cable One, Inc. COM 12685j105 56,409 79,349 SH   SOLE   67,224 0 12,125
Carlisle Cos. Inc. COM 142339100 36,521 382,818 SH   SOLE   331,093 0 51,725
Casey's General Stores COM 147528103 28,465 265,751 SH   SOLE   231,351 0 34,400
CenturyLink Inc COM 156700106 86,411 3,618,535 SH   SOLE   3,334,685 0 283,850
Cerner Corporation COM 156782104 518,836 7,805,566 SH   SOLE   7,157,655 0 647,911
Comcast Corp. COM 20030n101 708,080 18,193,219 SH   SOLE   16,665,963 0 1,527,256
Devon Energy Corp. COM 25179m103 157,933 4,940,022 SH   SOLE   4,521,291 0 418,731
Dollar General Corp COM 256677105 540,978 7,504,207 SH   SOLE   6,880,063 0 624,144
Ebay, Inc. COM 278642103 522,786 14,970,954 SH   SOLE   13,719,502 0 1,251,452
ePlus Inc. COM 294268107 78,772 1,063,046 SH   SOLE   920,560 0 142,486
Esterline Technologies COM 297425100 92,236 972,956 SH   SOLE   868,556 0 104,400
Expeditors Int'l. COM 302130109 467,080 8,269,825 SH   SOLE   7,567,643 0 702,182
Factset Research Sys. COM 303075105 31,790 191,300 SH   SOLE   165,610 0 25,690
Fairfax Financial COM 303901102 2,900 6,700 SH   SOLE   6,700 0 0
FirstCash Inc. COM 33767d105 176,446 3,026,526 SH   SOLE   2,618,732 0 407,794
Genpact, Ltd. COM g3922b107 146,346 5,258,582 SH   SOLE   4,541,532 0 717,050
Graham Holdings Co. COM 384637104 121,213 202,139 SH   SOLE   174,896 0 27,243
Greenlight Capital COM g4095j109 43,170 2,065,537 SH   SOLE   1,781,322 0 284,215
H.B. Fuller Co. COM 359694106 82,485 1,613,866 SH   SOLE   1,394,276 0 219,590
Honeywell Int'l Inc. COM 438516106 620,768 4,657,271 SH   SOLE   4,273,229 0 384,042
Interpublic Group COM 460690100 110,055 4,473,770 SH   SOLE   3,832,920 0 640,850
JPMorgan Chase COM 46625h100 534,163 5,844,236 SH   SOLE   5,352,527 0 491,709
Kennedy-Wilson Hld. COM 489398107 47,544 2,495,763 SH   SOLE   2,149,113 0 346,650
Kirby Corp. COM 497266106 56,746 848,859 SH   SOLE   722,784 0 126,075
Level 3 Comm. COM 52729n308 433,105 7,303,618 SH   SOLE   6,689,282 0 614,336
Liberty Global LiLAC - C COM g5480u153 90,372 4,221,000 SH   SOLE   4,221,000 0 0
Manpowergroup Inc. COM 56418H100 105,371 943,759 SH   SOLE   800,784 0 142,975
MEDNAX, Inc. COM 58502b106 62,179 1,029,973 SH   SOLE   921,898 0 108,075
Microsoft Corp. COM 594918104 290,035 4,207,671 SH   SOLE   3,853,672 0 353,999
MKS Instruments COM 55306n104 32,253 479,236 SH   SOLE   414,346 0 64,890
MSC Industrial Direct COM 553530106 45,032 523,870 SH   SOLE   451,710 0 72,160
Nestle SA ADR COM 641069406 447,432 5,131,096 SH   SOLE   4,706,483 0 424,613
Net 1 UEPS Technologies Inc. COM 64107n206 125 12,700 SH   SOLE   0 0 12,700
NVR Inc. COM 62944t105 47,699 19,787 SH   SOLE   17,057 0 2,730
Omnicom Group COM 681919106 413,063 4,982,667 SH   SOLE   4,562,301 0 420,366
Oracle Corp COM 68389x105 320,265 6,387,407 SH   SOLE   5,859,265 0 528,142
Paccar Inc. COM 693718108 448,723 6,794,718 SH   SOLE   6,226,028 0 568,690
Penske Automotive COM 70959w103 64,010 1,457,745 SH   SOLE   1,255,370 0 202,375
Potash Corp. COM 73755l107 608,649 37,340,421 SH   SOLE   35,360,248 0 1,980,173
Progressive Corp. COM 743315103 489,622 11,105,064 SH   SOLE   10,170,070 0 934,994
Robert Half Int'l. Inc. COM 770323103 105,561 2,202,390 SH   SOLE   1,904,490 0 297,900
Ryder System Inc. COM 783549108 87,237 1,211,960 SH   SOLE   1,043,505 0 168,455
Schlumberger Ltd. COM 806857108 625,361 9,498,185 SH   SOLE   8,987,652 0 510,533
Smiths Group PLC - ADR COM 83238p203 221 10,400 SH   SOLE   0 0 10,400
Stanley Black & Deck COM 854502101 480,135 3,411,743 SH   SOLE   3,125,732 0 286,011
TE Connectivity Ltd. COM H84989104 736,681 9,363,005 SH   SOLE   8,818,079 0 544,926
TJX Companies Inc COM 872540109 336,843 4,667,352 SH   SOLE   4,267,702 0 399,650
TriMas Corp. COM 896215209 57,247 2,745,646 SH   SOLE   2,371,396 0 374,250
Unilever PLC ADR COM 904767704 284,786 5,262,114 SH   SOLE   4,811,153 0 450,961
UnitedHealth Group COM 91324P102 661,762 3,568,992 SH   SOLE   3,268,778 0 300,214
Valmont Industries COM 920253101 39,405 263,400 SH   SOLE   223,994 0 39,406
Varian Medical Sys. COM 92220p105 73,218 709,542 SH   SOLE   607,497 0 102,045
ViaSat, Inc. COM 92552v100 28,948 437,285 SH   SOLE   378,360 0 58,925
W.R. Berkley Corp. COM 084423102 73,384 1,060,924 SH   SOLE   913,218 0 147,706
White Mountains Ins. COM g9618e107 62,062 71,448 SH   SOLE   61,799 0 9,649
Woodward Inc. COM 980745103 94,766 1,402,285 SH   SOLE   1,214,045 0 188,240
Zions Bancorporation COM 989701107 39,663 903,272 SH   SOLE   770,476 0 132,796