APA-Zitierstil (7. Ausg.)

Krashen, S. D., & Terrell, T. D. (1985). The natural approach: Language acquisition in the classroom (Repr.). Pergamon Press.

Chicago-Zitierstil (17. Ausg.)

Krashen, Stephen D., und Tracy D. Terrell. The Natural Approach: Language Acquisition in the Classroom. Repr. Oxford u.a: Pergamon Press, 1985.

MLA-Zitierstil (9. Ausg.)

Krashen, Stephen D., und Tracy D. Terrell. The Natural Approach: Language Acquisition in the Classroom. Repr. Pergamon Press, 1985.