Simpkins, R. A. (2004). The secrets of great sales management: Advanced strategies for maximizing performance. American Management Association.
Chicago-čujuhus (17. p.)Simpkins, Robert A. The Secrets of Great Sales Management: Advanced Strategies for Maximizing Performance. New York: American Management Association, 2004.
MLA-čujuhus (9. p.)Simpkins, Robert A. The Secrets of Great Sales Management: Advanced Strategies for Maximizing Performance. American Management Association, 2004.
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