Citazione Stile APA (7a Edizione)

Colman, D., & Young, T. (1989). Principles of agricultural economics: Markets and prices in less developed countries. Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Colman, David, e Trevor Young. Principles of Agricultural Economics: Markets and Prices in Less Developed Countries. Cambridge: Cambridge University Press, 1989.

Citatione MLA (9a ed.)

Colman, David, e Trevor Young. Principles of Agricultural Economics: Markets and Prices in Less Developed Countries. Cambridge University Press, 1989.