Cita APA

Underhill, A., & Underhill, A. (2005). Sound foundations: Learning and teaching pronunciation. Great Britain: Macmillan.

Citación estilo Chicago

Underhill, Adrian, y Adrian Underhill. Sound Foundations: Learning and Teaching Pronunciation. Great Britain: Macmillan, 2005.

Cita MLA

Underhill, Adrian, y Adrian Underhill. Sound Foundations: Learning and Teaching Pronunciation. Great Britain: Macmillan, 2005.

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