APA (7e ed.) Bronvermelding

Não informado. (2003). Columbia University bulletin of information. Columbia University.

Chicago (17e ed.) Bronvermelding

Não informado. Columbia University Bulletin of Information. New York: Columbia University, 2003.

MLA (8e ed.) Bronvermelding

Não informado. Columbia University Bulletin of Information. Columbia University, 2003.

Let op: Deze citaties zijn niet altijd 100% accuraat.