Cita APA

Bens, A. R. (1977). Active english: Pronunciation and speech. New Jersey: Prentice-Hall.

Citación estilo Chicago

Bens, Allis R. Active English: Pronunciation and Speech. New Jersey: Prentice-Hall, 1977.

Cita MLA

Bens, Allis R. Active English: Pronunciation and Speech. New Jersey: Prentice-Hall, 1977.