Παραπομπή APA

Greg, W., & Mark, W. (2006). Sales Force Management (8.). Mc Graw Hill Irwin.

Παραπομπή Chicago Style

Greg, W.Marshall, και W.Johnston Mark. Sales Force Management. 8. New York: Mc Graw Hill Irwin, 2006.

Παραπομπή MLA

Greg, W.Marshall, και W.Johnston Mark. Sales Force Management. 8. Mc Graw Hill Irwin, 2006.