Dyfyniad APA

(1968). Economics of trade and development. New York: Wiley.

Dyfyniad Arddull Chicago

Economics of Trade and Development. New York: Wiley, 1968.

Dyfyniad MLA

Economics of Trade and Development. New York: Wiley, 1968.

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