International Federation of Library Associations and Institutions. (1977). Directory. International Federation of Library Associations and Institutions.
Chicago Style (17th ed.) CitationInternational Federation of Library Associations and Institutions. Directory. [The Hague, Netherlands: International Federation of Library Associations and Institutions, 1977.
MLA引文International Federation of Library Associations and Institutions. Directory. International Federation of Library Associations and Institutions, 1977.
警告：这些引文格式不一定是100％准确.