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

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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 214,897 6,634,681 SH   SOLE   6,090,778 0 543,903
21st Century Fox - B COM 90130a200 450,517 14,176,130 SH   SOLE   12,999,777 0 1,176,353
Accenture Plc. COM g1151c101 842,995 7,031,988 SH   SOLE   6,642,475 0 389,513
Allscripts Healthcare COM 01988P108 76,652 6,045,110 SH   SOLE   5,221,760 0 823,350
American Express COM 025816109 299,289 3,783,205 SH   SOLE   3,466,220 0 316,985
AmerisourceBergen COM 03073e105 544,418 6,151,621 SH   SOLE   5,629,583 0 522,038
Anixter Int'l. COM 035290105 94,885 1,196,538 SH   SOLE   1,032,053 0 164,485
Applied Ind. Tech. COM 03820c105 45,596 737,204 SH   SOLE   638,779 0 98,425
AptarGroup Inc. COM 038336103 208 2,700 SH   SOLE   1,200 0 1,500
Armstrong World Ind. COM 04247x102 86,378 1,875,741 SH   SOLE   1,619,391 0 256,350
Arrow Electronics Inc. COM 042735100 126,427 1,722,206 SH   SOLE   1,479,956 0 242,250
Avery Dennison Corp. COM 053611109 79,437 985,569 SH   SOLE   851,239 0 134,330
Bank of NY Mellon COM 064058100 452,836 9,587,882 SH   SOLE   8,788,291 0 799,591
Berkshire Hath Cl B COM 084670702 717,783 4,306,356 SH   SOLE   3,949,404 0 356,952
Broadridge Financial COM 11133t103 97,901 1,440,786 SH   SOLE   1,239,771 0 201,015
Cable One, Inc. COM 12685j105 71,936 115,196 SH   SOLE   98,968 0 16,228
Carlisle Cos. Inc. COM 142339100 40,541 380,988 SH   SOLE   329,213 0 51,775
Casey's General Stores COM 147528103 29,598 263,675 SH   SOLE   229,200 0 34,475
Cerner Corporation COM 156782104 485,007 8,241,408 SH   SOLE   7,556,672 0 684,736
Comcast Corp. COM 20030n101 725,235 19,293,297 SH   SOLE   17,691,466 0 1,601,831
Compass Minerals COM 20451n101 47,355 697,943 SH   SOLE   601,413 0 96,530
Devon Energy Corp. COM 25179m103 214,375 5,138,426 SH   SOLE   4,697,370 0 441,056
Dollar General Corp COM 256677105 557,551 7,995,861 SH   SOLE   7,335,742 0 660,119
Ebay, Inc. COM 278642103 536,244 15,973,911 SH   SOLE   14,640,584 0 1,333,327
ePlus Inc. COM 294268107 70,869 524,760 SH   SOLE   454,142 0 70,618
Esterline Technologies COM 297425100 73,099 849,489 SH   SOLE   758,214 0 91,275
Expeditors Int'l. COM 302130109 500,992 8,868,690 SH   SOLE   8,130,733 0 737,957
Fairfax Financial COM 303901102 3,057 6,700 SH   SOLE   6,700 0 0
FirstCash Inc. COM 33767d105 148,877 3,029,034 SH   SOLE   2,615,524 0 413,510
Genpact, Ltd. COM g3922b107 130,391 5,266,210 SH   SOLE   4,538,685 0 727,525
Graham Holdings Co. COM 384637104 121,213 202,174 SH   SOLE   174,549 0 27,625
Greenlight Capital COM g4095j109 45,390 2,053,845 SH   SOLE   1,776,230 0 277,615
H.B. Fuller Co. COM 359694106 83,050 1,610,754 SH   SOLE   1,389,564 0 221,190
Honeywell Int'l Inc. COM 438516106 619,685 4,962,641 SH   SOLE   4,556,924 0 405,717
Interpublic Group COM 460690100 110,409 4,493,647 SH   SOLE   3,846,197 0 647,450
JPMorgan Chase COM 46625h100 547,550 6,233,497 SH   SOLE   5,716,313 0 517,184
Kennedy-Wilson Hld. COM 489398107 54,822 2,469,450 SH   SOLE   2,133,025 0 336,425
Kirby Corp. COM 497266106 60,835 862,303 SH   SOLE   733,403 0 128,900
Level 3 Comm. COM 52729n308 445,613 7,787,706 SH   SOLE   7,141,195 0 646,511
Liberty Global LiLAC - C COM g5480u153 41,864 1,817,000 SH   SOLE   1,817,000 0 0
Manpowergroup Inc. COM 56418H100 98,327 958,631 SH   SOLE   812,631 0 146,000
MEDNAX, Inc. COM 58502b106 30,716 442,725 SH   SOLE   388,100 0 54,625
Microsoft Corp. COM 594918104 295,974 4,493,981 SH   SOLE   4,125,507 0 368,474
MKS Instruments COM 55306n104 54,851 797,831 SH   SOLE   681,991 0 115,840
MSC Industrial Direct COM 553530106 54,914 534,387 SH   SOLE   461,202 0 73,185
Nestle SA ADR COM 641069406 418,453 5,441,527 SH   SOLE   4,994,414 0 447,113
Net 1 UEPS Technologies Inc. COM 64107n206 290 23,700 SH   SOLE   11,000 0 12,700
NVR Inc. COM 62944t105 41,449 19,673 SH   SOLE   16,942 0 2,731
Omnicom Group COM 681919106 456,768 5,298,319 SH   SOLE   4,852,778 0 445,541
Oracle Corp COM 68389x105 306,033 6,860,183 SH   SOLE   6,295,841 0 564,342
Paccar Inc. COM 693718108 486,653 7,241,866 SH   SOLE   6,643,201 0 598,665
Penske Automotive COM 70959w103 67,531 1,442,655 SH   SOLE   1,245,755 0 196,900
Potash Corp. COM 73755l107 649,640 38,035,149 SH   SOLE   35,940,776 0 2,094,373
Progressive Corp. COM 743315103 463,597 11,832,487 SH   SOLE   10,846,943 0 985,544
Robert Half Int'l. Inc. COM 770323103 107,456 2,200,621 SH   SOLE   1,899,271 0 301,350
Ryder System Inc. COM 783549108 80,475 1,066,741 SH   SOLE   922,361 0 144,380
Schlumberger Ltd. COM 806857108 756,886 9,691,248 SH   SOLE   9,152,815 0 538,433
Smiths Group PLC - ADR COM 83238p203 289 13,950 SH   SOLE   3,550 0 10,400
Stanley Black & Deck COM 854502101 483,948 3,642,266 SH   SOLE   3,339,680 0 302,586
TE Connectivity Ltd. COM H84989104 716,931 9,616,782 SH   SOLE   9,042,056 0 574,726
TJX Companies Inc COM 872540109 225,702 2,854,093 SH   SOLE   2,618,018 0 236,075
TriMas Corp. COM 896215209 56,671 2,731,135 SH   SOLE   2,358,960 0 372,175
Unilever PLC ADR COM 904767704 523,770 10,615,523 SH   SOLE   9,748,787 0 866,736
UnitedHealth Group COM 91324P102 624,058 3,804,997 SH   SOLE   3,487,083 0 317,914
Valmont Industries COM 920253101 41,770 268,617 SH   SOLE   228,411 0 40,206
Varian Medical Sys. COM 92220p105 64,948 712,691 SH   SOLE   609,246 0 103,445
W.R. Berkley Corp. COM 084423102 74,993 1,061,776 SH   SOLE   913,395 0 148,381
White Mountains Ins. COM g9618e107 44,533 50,613 SH   SOLE   43,750 0 6,863
Woodward Inc. COM 980745103 95,243 1,402,285 SH   SOLE   1,211,645 0 190,640
Zions Bancorporation COM 989701107 55,088 1,311,623 SH   SOLE   1,132,652 0 178,971