APA (7th ed.) Citation

Krashen, S. D. (1988). Second language acquisition and second language learning (1. publ.). Prentice Hall.

Chicago Style (17th ed.) Citation

Krashen, Stephen D. Second Language Acquisition and Second Language Learning. 1. publ. New York, NY [u.a.]: Prentice Hall, 1988.

MLA (9th ed.) Citation

Krashen, Stephen D. Second Language Acquisition and Second Language Learning. 1. publ. Prentice Hall, 1988.