Cita APA (7th ed.)

JEFFREY, R. C., & PETERSON, O. (1980). Speech: Atext with adapted readings.-- ed.3. Harper and Row.

Cita Chicago (17th ed.)

JEFFREY, Robert C., i Owen PETERSON. Speech: Atext with Adapted Readings.-- Ed.3. New York: Harper and Row, 1980.

Cita MLA (9th ed.)

JEFFREY, Robert C., i Owen PETERSON. Speech: Atext with Adapted Readings.-- Ed.3. Harper and Row, 1980.