Dyfyniad APA

Kemp, M. (1964). The pure theory of international trade. Prentice Hall.

Dyfyniad Arddull Chicago

Kemp, Murray. The Pure Theory of International Trade. Englewood Cliffs: Prentice Hall, 1964.

Dyfyniad MLA

Kemp, Murray. The Pure Theory of International Trade. Prentice Hall, 1964.

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