Colman, D., & Youns, T. (1989). Principles of agricultural economics: Markets and prices in less developed countries. Cambridge University Press.
Chicago Style aipamenaColman, David, and Trevor Youns. Principles of Agricultural Economics: Markets and Prices in Less Developed Countries. New York: Cambridge University Press, 1989.
MLA aipamenaColman, David, and Trevor Youns. Principles of Agricultural Economics: Markets and Prices in Less Developed Countries. Cambridge University Press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.