Dyfyniad APA

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

Dyfyniad Arddull Chicago

BOWDEN, Elbert V. Economic Evolution. Cincinati: South-Western, 1981.

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.