Dyfyniad APA

Kenen, P. B., & Lubitz, R. (1971). International economics (3d ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Kenen, Peter B., and Raymond Lubitz. International Economics. 3d ed. Englewood Cliffs, N.J: Prentice-Hall, 1971.

Dyfyniad MLA

Kenen, Peter B., and Raymond Lubitz. International Economics. 3d ed. Prentice-Hall, 1971.

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