APA Citation

Krashen, S. D. (1982). Principles and practice in second language acquisition. Pergoman Press.

Chicago Style Citation

Krashen, Stephen D. Principles and Practice in Second Language Acquisition. Pergoman Press, 1982.

MLA Citation

Krashen, Stephen D. Principles and Practice in Second Language Acquisition. Pergoman Press, 1982.

Warning: These citations may not always be 100% accurate.