Spiro, R. L., .Stanton, W. J., & .Rich, G. A. (1999). Management of a sales force (11th ed.). Irwin/McGraw-Hill.
Chicago Style (17. basım) AtıfSpiro, Rosann L., William J. .Stanton, ve Gregory A. .Rich. Management of a Sales Force. 11th ed. Boston: Irwin/McGraw-Hill, 1999.
MLA (9th ed.) AtıfSpiro, Rosann L., et al. Management of a Sales Force. 11th ed. Irwin/McGraw-Hill, 1999.