Παραπομπή APA

Short, C., & Heady, E. O. (1983). Programmed interrelationships between soil loss and exports. Ames: Center for Agricultural and Rural Development. Iowa State University.

Παραπομπή Chicago Style

Short, Cameron, and Earl O. Heady. Programmed Interrelationships between Soil Loss and Exports. Ames: Center for Agricultural and Rural Development. Iowa State University, 1983.

Παραπομπή MLA

Short, Cameron, and Earl O. Heady. Programmed Interrelationships between Soil Loss and Exports. Ames: Center for Agricultural and Rural Development. Iowa State University, 1983.

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