Cita APA (7a ed.)

HARTLEY,P. (2002). BUSINESS COMMUNICATION. TAYLOR & FRANCIS LTD.

Cita Chicago Style (17a ed.)

HARTLEY,P. BUSINESS COMMUNICATION. LONDON: TAYLOR & FRANCIS LTD, 2002.

Cita MLA (9a ed.)

HARTLEY,P. BUSINESS COMMUNICATION. TAYLOR & FRANCIS LTD, 2002.