Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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