Citazione Stile APA (7a Edizione)

Cole, R. D. (1937). Modern foreign languages and their teaching. Appleton Century Crofts.

Citazione stile Chigago Style (17a edizione)

Cole, Robert D. Modern Foreign Languages and Their Teaching. New York: Appleton Century Crofts, 1937.

Citatione MLA (9a ed.)

Cole, Robert D. Modern Foreign Languages and Their Teaching. Appleton Century Crofts, 1937.