Cita APA (7th ed.)

MERCER DAVID. (1988). SALES: PROFESSIONAL STRATEGIES AND TECHNIQUES...HIGH LEVEL SALES. KOGAN PAGE.

Cita Chicago (17th ed.)

MERCER DAVID. SALES: PROFESSIONAL STRATEGIES AND TECHNIQUES...HIGH LEVEL SALES. LONDON: KOGAN PAGE, 1988.

Cita MLA (9th ed.)

MERCER DAVID. SALES: PROFESSIONAL STRATEGIES AND TECHNIQUES...HIGH LEVEL SALES. KOGAN PAGE, 1988.