APA aipamena

Wales A. P. (1969). International library directory: A world directory of libraries (3rd ed.).

Chicago Style aipamena

Wales A. P. International Library Directory: A World Directory of Libraries. 3rd ed. 1969.

MLA aipamena

Wales A. P. International Library Directory: A World Directory of Libraries. 3rd ed. 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.