Dyfyniad APA

Mussey, H. R., & Donnan, E. (1947). Economic principles and modern practice (2nd ed.). Ginn.

Dyfyniad Arddull Chicago

Mussey, Henry Raymond, and Elizabeth Donnan. Economic Principles and Modern Practice. 2nd ed. Boston: Ginn, 1947.

Dyfyniad MLA

Mussey, Henry Raymond, and Elizabeth Donnan. Economic Principles and Modern Practice. 2nd ed. Ginn, 1947.

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