Krashen, S. D. (1983). Second language acquisition and second language learning (1st ed., repr.). Pergamon Press.
Chicago Style (17th ed.) CitationKrashen, Stephen D. Second Language Acquisition and Second Language Learning. 1st ed., repr. Oxford [etc.]: Pergamon Press, 1983.
MLA (9th ed.) CitationKrashen, Stephen D. Second Language Acquisition and Second Language Learning. 1st ed., repr. Pergamon Press, 1983.
Warning: These citations may not always be 100% accurate.