APA-Zitierstil (7. Ausg.)

Krashen, S. D. (1981). Second language acquisition and second language learning. Pergamon Press.

Chicago-Zitierstil (17. Ausg.)

Krashen, Stephen D. Second Language Acquisition and Second Language Learning. Oxford: Pergamon Press, 1981.

MLA-Zitierstil (9. Ausg.)

Krashen, Stephen D. Second Language Acquisition and Second Language Learning. Pergamon Press, 1981.