Crossbreeding hogs for pork production
Lush, J.L., Shearer, P.S., Culbertson, C.C.
Crossbreeding hogs for pork production - Ames 1939 - 83-116 - Production, Hogs Iowa Agricultural Experiment Station. Bulletin No. 380 .
Crossbreeding hogs for pork production - Ames 1939 - 83-116 - Production, Hogs Iowa Agricultural Experiment Station. Bulletin No. 380 .