共 50 条
- [1] SAMPLING METHODS IN USE IN SOME OF THE FARM MANAGEMENT RESEARCH AT CORNELL JOURNAL OF FARM ECONOMICS, 1947, 29 (04): : 1267 - 1270
- [2] THE ROLE OF SAMPLING IN FARM-MANAGEMENT RESEARCH JOURNAL OF FARM ECONOMICS, 1947, 29 (04): : 1229 - 1240
- [3] COMMENTS ON SAMPLING TO INCREASE THE USEFULNESS OF FARM MANAGEMENT RESEARCH JOURNAL OF FARM ECONOMICS, 1941, 23 (02): : 499 - 501
- [4] A COMPARISON OF METHODS USED IN EVALUATING THE RESULTS OF PASTURE RESEARCH JOURNAL OF THE AMERICAN SOCIETY OF AGRONOMY, 1947, 39 (03): : 240 - 259
- [8] Management methods to improve the welfare of horses used in research Lab Animal, 2015, 44 : 350 - 358
- [9] Research in Farm Economics and Farm Management JOURNAL OF FARM ECONOMICS, 1922, 4 (01): : 1 - 12