APA (7e ed.) Bronvermelding

(2002). Sales don't just happen: 26 proven strategies to increase sales in any market / Stephan Schiffman.

Chicago (17e ed.) Bronvermelding

Sales Don't Just Happen: 26 Proven Strategies to Increase Sales in Any Market / Stephan Schiffman. 2002.

MLA (9e ed.) Bronvermelding

Sales Don't Just Happen: 26 Proven Strategies to Increase Sales in Any Market / Stephan Schiffman. 2002.

Let op: Deze citaties zijn niet altijd 100% accuraat.