Citazione Stile APA (7a Edizione)

Ferguson, C. E., & Kreps, J. M. (1965). Principles of economics (2nd ed.). Holt, Rinehart and Winston.

Citazione stile Chigago Style (17a edizione)

Ferguson, C. E., e Juanita M. Kreps. Principles of Economics. 2nd ed. New York: Holt, Rinehart and Winston, 1965.

Citatione MLA (9a ed.)

Ferguson, C. E., e Juanita M. Kreps. Principles of Economics. 2nd ed. Holt, Rinehart and Winston, 1965.