Cita APA (7th ed.)

SCHIFFMAN STEPHAN. (2005). 25 SALES HABITS OF HIGHLY SUCCESSFUL SALESPEOPLE. ADAMS MEDIA CORPORATION.

Cita Chicago (17th ed.)

SCHIFFMAN STEPHAN. 25 SALES HABITS OF HIGHLY SUCCESSFUL SALESPEOPLE. MASSACHUETTS: ADAMS MEDIA CORPORATION, 2005.

Cita MLA (9th ed.)

SCHIFFMAN STEPHAN. 25 SALES HABITS OF HIGHLY SUCCESSFUL SALESPEOPLE. ADAMS MEDIA CORPORATION, 2005.