Παραπομπή APA

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

Παραπομπή Chicago Style

Eckersley, C E., και W Elliott Kaufman. A Commercial Course for Foreign Students. London: Longman, 1964.

Παραπομπή MLA

Eckersley, C E., και W Elliott Kaufman. A Commercial Course for Foreign Students. Longman, 1964.