Cita APA (7th ed.)

Berg, F. S. (1978). Listening and speech training package. Grune & Stratton.

Cita Chicago (17th ed.)

Berg, Frederick S. Listening and Speech Training Package. New York: Grune & Stratton, 1978.

Cita MLA (8th ed.)

Berg, Frederick S. Listening and Speech Training Package. Grune & Stratton, 1978.