APA (7th ed.) Citation

Não informado. (1970). Directory. International Federation of Library Associations.

Chicago Style (17th ed.) Citation

Não informado. Directory. The Hague, Holanda: International Federation of Library Associations, 1970.

MLA (8th ed.) Citation

Não informado. Directory. International Federation of Library Associations, 1970.

Warning: These citations may not always be 100% accurate.