Cita APA (7th ed.)

UNWIN W R. (1983). MASTERING BUSINESS COMMUNICATION. MACMILLAN.

Cita Chicago (17th ed.)

UNWIN W R. MASTERING BUSINESS COMMUNICATION. LONDON: MACMILLAN, 1983.

Cita MLA (9th ed.)

UNWIN W R. MASTERING BUSINESS COMMUNICATION. MACMILLAN, 1983.