Cita APA (7th ed.)

English, S. L. (1988). Say it clearly: Exercises and activities for pronunciation and oral communication. Collier Macmillan.

Cita Chicago (17th ed.)

English, Susan Lewis. Say It Clearly: Exercises and Activities for Pronunciation and Oral Communication. New York: Collier Macmillan, 1988.

Cita MLA (9th ed.)

English, Susan Lewis. Say It Clearly: Exercises and Activities for Pronunciation and Oral Communication. Collier Macmillan, 1988.