APA aipamena

(1997). Ulrich's international periodicals directory 1997: Including irregular serials & annuals (35th edition.). Bowker.

Chicago Style aipamena

Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. New York: Bowker, 1997.

MLA aipamena

Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. Bowker, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.