APA (7th ed.) Zitazioa

Bowden, E. V. (1981). Economic evolution. South-Western.

Chicago Style (17th ed.) Zitazioa

Bowden, Elbert V. Economic Evolution. Cincinnati: South-Western, 1981.

MLA (9th ed.) Zitazioa

Bowden, Elbert V. Economic Evolution. South-Western, 1981.