Cron, W. L., Dalrymple, D. J., & DeCarlo, T. E. (2006). Dalrymple's sales management (9th ed.). John Wiley.
Lua i Stíl Chicago (17ú heag.)Cron, William L., Douglas J. Dalrymple, agus Thomas E. DeCarlo. Dalrymple's Sales Management. 9th ed. Hoboken, N.J: John Wiley, 2006.
Lua MLA (9ú heag.)Cron, William L., et al. Dalrymple's Sales Management. 9th ed. John Wiley, 2006.
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