Downey, W. D., & Trocke, J. K. (1981). Agribusiness management. McGraw-Hill.
Chicago Style aipamenaDowney, W. David, and John K. Trocke. Agribusiness Management. New York: McGraw-Hill, 1981.
MLA aipamenaDowney, W. David, and John K. Trocke. Agribusiness Management. McGraw-Hill, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.