Cita APA

Letterman, H., & Slivka, H. (1983). Word plays: Grammar and conversation for beginners. New York: Longman.

Citación estilo Chicago

Letterman, Hannah, y Helen Slivka. Word Plays: Grammar and Conversation for Beginners. New York: Longman, 1983.

Cita MLA

Letterman, Hannah, y Helen Slivka. Word Plays: Grammar and Conversation for Beginners. New York: Longman, 1983.

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