APA (7e ed.) Bronvermelding

Não informado. IFLA communications. International Federation of Library Associations.

Chicago (17e ed.) Bronvermelding

Não informado. IFLA Communications. Copenhagen: International Federation of Library Associations.

MLA (8e ed.) Bronvermelding

Não informado. IFLA Communications. International Federation of Library Associations.

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