APA (7e ed.) Bronvermelding

Posner, M. (1999). Successful credit control. J. Wiley.

Chicago (17e ed.) Bronvermelding

Posner, Martin. Successful Credit Control. Chichester ; Hodder & Stoughton ; New York : London: J. Wiley, 1999.

MLA (8e ed.) Bronvermelding

Posner, Martin. Successful Credit Control. J. Wiley, 1999.