Smith, B., & Rutigliano, T. (2003). Discover your sales strengths: How the world's greatest salespeople develop winning careers. Random House.
Παραπομπή σε μορφή Chicago (17η εκδ.)Smith, Benson, και Tony Rutigliano. Discover Your Sales Strengths: How the World's Greatest Salespeople Develop Winning Careers. Great Britain: Random House, 2003.
Παραπομπή σε μορφή MLA (8th εκδ.)Smith, Benson, και Tony Rutigliano. Discover Your Sales Strengths: How the World's Greatest Salespeople Develop Winning Careers. Random House, 2003.
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