Citazione Stile APA (7a Edizione)

Eckersley, C. (1964). A commercial course for foreign students™. Longman.

Citazione stile Chigago Style (17a edizione)

Eckersley, C.E. A Commercial Course for Foreign Students™. London: Longman, 1964.

Citatione MLA (9a ed.)

Eckersley, C.E. A Commercial Course for Foreign Students™. Longman, 1964.