Style de citation APA

Heady, E. O. (1970). Economic development of agriculture: The modernization of farming. IOWA state university press.

Style de citation Chicago

Heady, Earl O. Economic Development of Agriculture: The Modernization of Farming. Ames: IOWA state university press, 1970.

Style de citation MLA

Heady, Earl O. Economic Development of Agriculture: The Modernization of Farming. IOWA state university press, 1970.

Attention : ces citations peuvent ne pas être correctes à 100%.