Resource productivity and returns on 160-acre farms in North-Central Iowa (A production function study of marginal returns of farms with fixed plants)
Heady, E.O.
Resource productivity and returns on 160-acre farms in North-Central Iowa (A production function study of marginal returns of farms with fixed plants) - Ames 1954 - 1069-1096 p. - Iowa Agricultural Expriment Station. Research Bulletin No. 412 .
Resource productivity and returns on 160-acre farms in North-Central Iowa (A production function study of marginal returns of farms with fixed plants) - Ames 1954 - 1069-1096 p. - Iowa Agricultural Expriment Station. Research Bulletin No. 412 .