Dyfyniad APA
Lazarus, S. Loud and clear: A guide to effective communication. AMACOM.
Dyfyniad Arddull Chicago
Lazarus, Sy. Loud and Clear: A Guide to Effective Communication. New York: AMACOM.
Dyfyniad MLA
Lazarus, Sy. Loud and Clear: A Guide to Effective Communication. AMACOM.
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