APA (7e ed.) Bronvermelding

Não informado. (1948). Language Learning. Research Club in Language Learning.

Chicago (17e ed.) Bronvermelding

Não informado. Language Learning. Ann Arbor, Mich: Research Club in Language Learning, 1948.

MLA (8e ed.) Bronvermelding

Não informado. Language Learning. Research Club in Language Learning, 1948.

Let op: Deze citaties zijn niet altijd 100% accuraat.