Não informado. (1932). Ulrich's Periodicals Directory: A classified guide to a selected list of current periodicals, foreign and domestic. R. R. Bowker.
Citação do estilo Chicago (17ª ed.)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.
Citação MLA (8ª ed.)Não informado. Ulrich's Periodicals Directory: A Classified Guide to a Selected List of Current Periodicals, Foreign and Domestic. R. R. Bowker, 1932.
警告：這些引文格式不一定是100％准確.