APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.