APA (7e ed.) Bronvermelding

STILL RICHARD R. (2007). SALES MANAGEMENT: DECISIONS, STRATEGIES AND CASES, 5TH ED (5TH ED.). PEARSON EDUCATION ,INC.

Chicago (17e ed.) Bronvermelding

STILL RICHARD R. SALES MANAGEMENT: DECISIONS, STRATEGIES AND CASES, 5TH ED. 5TH ED. NEW DELHI: PEARSON EDUCATION ,INC, 2007.

MLA (9e ed.) Bronvermelding

STILL RICHARD R. SALES MANAGEMENT: DECISIONS, STRATEGIES AND CASES, 5TH ED. 5TH ED. PEARSON EDUCATION ,INC, 2007.