Style de citation APA (7e éd.)

Krashen, S. D. (1985). The input hypothesis: Issues and implications. Longman.

Style de citation Chicago (17e éd.)

Krashen, Stephen D. The Input Hypothesis: Issues and Implications. London ; New York: Longman, 1985.

Style de citation MLA (8e éd.)

Krashen, Stephen D. The Input Hypothesis: Issues and Implications. Longman, 1985.