Dyfyniad APA

Eckersley, C. E., & Kaufman, W. (1964). A Commercial Course for Foreign Students (4.). Longmans, Green.

Dyfyniad Arddull Chicago

Eckersley, C E., and W. Kaufman. A Commercial Course for Foreign Students. 4. London: Longmans, Green, 1964.

Dyfyniad MLA

Eckersley, C E., and W. Kaufman. A Commercial Course for Foreign Students. 4. Longmans, Green, 1964.

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