(1997). Ulrich's international periodicals directory 1997: Including irregular serials & annuals (35th edition.). Bowker.
Chicago-Zitierstil (17. Ausg.)Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. New York: Bowker, 1997.
MLA-Zitierstil (9. Ausg.)Ulrich's International Periodicals Directory 1997: Including Irregular Serials & Annuals. 35th edition. Bowker, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.