APA-Zitierstil (7. Ausg.)

Krashen, S. D., & Terrell, T. D. (1983). The natural approach: Language acquisition in the classroom. Alemany Pr.

Chicago-Zitierstil (17. Ausg.)

Krashen, Stephen D., und Tracy D. Terrell. The Natural Approach: Language Acquisition in the Classroom. San Francisco, Calif: Alemany Pr, 1983.

MLA-Zitierstil (9. Ausg.)

Krashen, Stephen D., und Tracy D. Terrell. The Natural Approach: Language Acquisition in the Classroom. Alemany Pr, 1983.