APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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