ULRICH'S International Periodicals Directory: Including irregular serials annuals. the Bowker International Serials Database. R. R. Bowker.
Chicago-Zitierstil (17. Ausg.)ULRICH'S International Periodicals Directory: Including Irregular Serials Annuals. the Bowker International Serials Database. New York: R. R. Bowker.
MLA-Zitierstil (9. Ausg.)ULRICH'S International Periodicals Directory: Including Irregular Serials Annuals. the Bowker International Serials Database. R. R. Bowker.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.