APA aipamena

(1923). American library directory ... a classified list of libraries with names of librarians. R. R. Bowker.

Chicago Style aipamena

American Library Directory ... a Classified List of Libraries with Names of Librarians. New York: R. R. Bowker, 1923.

MLA aipamena

American Library Directory ... a Classified List of Libraries with Names of Librarians. R. R. Bowker, 1923.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.