Cita APA

Krashen, S. D. (1986). The input hypothesis: Issues and implications. London: Longman.

Citación estilo Chicago

Krashen, Stephen D. The Input Hypothesis: Issues and Implications. London: Longman, 1986.

Cita MLA

Krashen, Stephen D. The Input Hypothesis: Issues and Implications. London: Longman, 1986.

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