APA-referens (7:e uppl.)

Sollish, F., & Semanik, J. (2005). The purchasing and supply manager's guide to the C.P.M. exam. Harbor Light Press.

Chicago-referens (17:e uppl.)

Sollish, Fred, och John Semanik. The Purchasing and Supply Manager's Guide to the C.P.M. Exam. San Francisco: Harbor Light Press, 2005.

MLA-referens (9:e uppl.)

Sollish, Fred, och John Semanik. The Purchasing and Supply Manager's Guide to the C.P.M. Exam. Harbor Light Press, 2005.