Não informado. (1932). Ulrich's Periodicals Directory: A classified guide to a selected list of current periodicals, foreign and domestic. R. R. Bowker.
Chicago-Zitierstil (17. Ausg.)Não informado. Ulrich's Periodicals Directory: A Classified Guide to a Selected List of Current Periodicals, Foreign and Domestic. New York: R. R. Bowker, 1932.
MLA-Zitierstil (8. Ausg.)Não informado. Ulrich's Periodicals Directory: A Classified Guide to a Selected List of Current Periodicals, Foreign and Domestic. R. R. Bowker, 1932.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.