Agricultural production functions

Marginal rates of substitution of fertilizer for l Heady, Earl O. Economics Agricultural production and resource use Heady, Earl O. Economic of Agricultural production and resources use Heady, Earl O. Economics of agricultural production and resource use HEADY, Earl O. Agricultural supply functions: Estimating techniques and interpretation HEADY, Earl O. Agricultural adjustment problems in a Growing economy HEADY, Earl O. Agricultural policy under economic development HEADY, Earl O. A brief history of Bavaria Norman, Gertrude