APA (7e ed.) Bronvermelding

Não informado. (1972). International Cataloguing. International Federation of Library Associations.

Chicago (17e ed.) Bronvermelding

Não informado. International Cataloguing. London: International Federation of Library Associations, 1972.

MLA (8e ed.) Bronvermelding

Não informado. International Cataloguing. International Federation of Library Associations, 1972.

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