Παραπομπή σε μορφή APA (7η εκδ.)

WALTON, L. E. (1967). Foreign Trade And Foreign Exchange Their Theory And Practice L.e. Walton. MacDonald & Evans.

Παραπομπή σε μορφή Chicago (17η εκδ.)

WALTON, L. E. Foreign Trade And Foreign Exchange Their Theory And Practice L.e. Walton. MacDonald & Evans, 1967.

Παραπομπή σε μορφή MLA (8th εκδ.)

WALTON, L. E. Foreign Trade And Foreign Exchange Their Theory And Practice L.e. Walton. MacDonald & Evans, 1967.