Selection of freshening dates that will maximize dairy profits : an application of linear programming using Dairy Herd Improvement Association data from Northern Illinois /

Hlavní autor:
Baker C. B. ( Autor )
Další autoři:
Tefertiller, K. R. ( Autor )
Typ dokumentu: Kniha
Jazyk: angličtina
Vydavatel: [Urbana : University of Illinois, 1962].
Edice: Bulletin - University of Illinois. Agricultural Experiment Station ; 681