Stephan Schiffman. (2006). Beat sales burnout: Maximize sales, minimize stress. Adams media publications.
Chicago Edition CitationStephan Schiffman. Beat Sales Burnout: Maximize Sales, Minimize Stress. India: Adams media publications, 2006.
Cita MLAStephan Schiffman. Beat Sales Burnout: Maximize Sales, Minimize Stress. Adams media publications, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.