Krashen, S. D. (1985). The input hypothesis: Issues and implications. Longman.
Chicago Style (17th ed.) CitationKrashen, Stephen D. The Input Hypothesis: Issues and Implications. London ; New York: Longman, 1985.
MLA引文Krashen, Stephen D. The Input Hypothesis: Issues and Implications. Longman, 1985.
警告:這些引文格式不一定是100%准確.