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.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.