Costs and returns from the laying flock on commercial poultry farms, 1940-41
Darrah, L.B.
Costs and returns from the laying flock on commercial poultry farms, 1940-41 - Ithaca 1943 - 1-56 p. - Cornell Agricultural Experime .
Costs and returns from the laying flock on commercial poultry farms, 1940-41 - Ithaca 1943 - 1-56 p. - Cornell Agricultural Experime .