APA (7th ed.) Citation

Schiffman's, S. (2009). Sales essentials. Adam Media.

Chicago Style (17th ed.) Citation

Schiffman's, Stephan. Sales Essentials. Avon, Massachusetts: Adam Media, 2009.

MLA (9th ed.) Citation

Schiffman's, Stephan. Sales Essentials. Adam Media, 2009.

Warning: These citations may not always be 100% accurate.