Cita APA

Ferguson, C., & Kreps, J. M. (1965). Principles of economics (2nd ed.).

Chicago Edition Citation

Ferguson, C.E, i Juanita M. Kreps. Principles of Economics. 2nd ed. Calcutta, 1965.

Cita MLA

Ferguson, C.E, i Juanita M. Kreps. Principles of Economics. 2nd ed. 1965.