Παραπομπή APA

Faber, D. C., & Heady, E. O. (1979). U.S. food exports under various worldwide nutritional constraints. Ames: Center for Agricultural and Rural Development. Iowa State University.

Παραπομπή Chicago Style

Faber, Doeke C., and Earl O. Heady. U.S. Food Exports Under Various Worldwide Nutritional Constraints. Ames: Center for Agricultural and Rural Development. Iowa State University, 1979.

Παραπομπή MLA

Faber, Doeke C., and Earl O. Heady. U.S. Food Exports Under Various Worldwide Nutritional Constraints. Ames: Center for Agricultural and Rural Development. Iowa State University, 1979.

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