Cita APA

Brigance, W. N., & Henderson, F. M. (1939). A drill manual for improving speech. Chicago: J. B. Lippincott Company.

Citación estilo Chicago

Brigance, William Norwood, y Florence M. Henderson. A Drill Manual for Improving Speech. Chicago: J. B. Lippincott Company, 1939.

Cita MLA

Brigance, William Norwood, y Florence M. Henderson. A Drill Manual for Improving Speech. Chicago: J. B. Lippincott Company, 1939.