Cita APA (7th ed.)

COOPER SIMON. (1997). SELLING: PRINCIPLES, PRACTICE AND MANAGEMENT. PITMAN PUBLICATIONS.

Cita Chicago (17th ed.)

COOPER SIMON. SELLING: PRINCIPLES, PRACTICE AND MANAGEMENT. LONDON: PITMAN PUBLICATIONS, 1997.

Cita MLA (9th ed.)

COOPER SIMON. SELLING: PRINCIPLES, PRACTICE AND MANAGEMENT. PITMAN PUBLICATIONS, 1997.