Παραπομπή APA

Heady, E. O. (1962). Agricultural policy under economic development. Ames, Iowa, U.S.A: Iowa State University Press.

Παραπομπή Chicago Style

Heady, Earl O. Agricultural Policy Under Economic Development. Ames, Iowa, U.S.A: Iowa State University Press, 1962.

Παραπομπή MLA

Heady, Earl O. Agricultural Policy Under Economic Development. Ames, Iowa, U.S.A: Iowa State University Press, 1962.

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