APA (7e ed.) Bronvermelding

Não informado. (1952). Public relations. Institute of Public Relations.

Chicago (17e ed.) Bronvermelding

Não informado. Public Relations. London: Institute of Public Relations, 1952.

MLA (8e ed.) Bronvermelding

Não informado. Public Relations. Institute of Public Relations, 1952.

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