Παραπομπή APA

Aalden, D. (1962). Collins Cortina French in 20 Lessons. Collins.

Παραπομπή Chicago Style

Aalden, D.W. Collins Cortina French in 20 Lessons. London: Collins, 1962.

Παραπομπή MLA

Aalden, D.W. Collins Cortina French in 20 Lessons. Collins, 1962.