Earl O Heady. (1964). Economics of agricultural production and resource use. Newdelhi.
シカゴスタイル引用形Earl O Heady. Economics of Agricultural Production and Resource Use. Newdelhi, 1964.
MLA引用形式Earl O Heady. Economics of Agricultural Production and Resource Use. Newdelhi, 1964.
警告: この引用は必ずしも正確ではありません.