APA (7e ed.) Bronvermelding

Spiro, R. L., .Stanton, W. J., & .Rich, G. A. (1999). Management of a sales force (11th ed.). Irwin/McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Spiro, Rosann L., William J. .Stanton, en Gregory A. .Rich. Management of a Sales Force. 11th ed. Boston: Irwin/McGraw-Hill, 1999.

MLA (9e ed.) Bronvermelding

Spiro, Rosann L., et al. Management of a Sales Force. 11th ed. Irwin/McGraw-Hill, 1999.