APA (7e ed.) Bronvermelding
Sollish, F., & Semanik, J. (2005). The purchasing and supply manager's guide to the C.P.M. exam. Harbor Light Press.
Chicago (17e ed.) Bronvermelding
Sollish, Fred, en John Semanik. The Purchasing and Supply Manager's Guide to the C.P.M. Exam. San Francisco: Harbor Light Press, 2005.
MLA (9e ed.) Bronvermelding
Sollish, Fred, en John Semanik. The Purchasing and Supply Manager's Guide to the C.P.M. Exam. Harbor Light Press, 2005.
Let op: Deze citaties zijn niet altijd 100% accuraat.