Cita APA (7th ed.)

Lazarus, S. Loud and clear: A guide to effective communication. AMACOM.

Cita Chicago (17th ed.)

Lazarus, Sy. Loud and Clear: A Guide to Effective Communication. New York: AMACOM.

Cita MLA (9th ed.)

Lazarus, Sy. Loud and Clear: A Guide to Effective Communication. AMACOM.