APA (7e ed.) Bronvermelding

Não informado. (1969). IFLA Annual. International Federation of Library Associations and Institutions.

Chicago (17e ed.) Bronvermelding

Não informado. IFLA Annual. Munich, Alemanha: International Federation of Library Associations and Institutions, 1969.

MLA (8e ed.) Bronvermelding

Não informado. IFLA Annual. International Federation of Library Associations and Institutions, 1969.

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