Citazione Stile APA (7a Edizione)

Cowling, K., Metcalf, D. H., & Rayner, A. J. (1970). Resource structure of agriculture: An economic analysis ([1st ed.].). Pergamon Press.

Citazione stile Chigago Style (17a edizione)

Cowling, Keith, David H. Metcalf, e A. J. Rayner. Resource Structure of Agriculture: An Economic Analysis. [1st ed.]. Oxford: Pergamon Press, 1970.

Citatione MLA (9a ed.)

Cowling, Keith, et al. Resource Structure of Agriculture: An Economic Analysis. [1st ed.]. Pergamon Press, 1970.