Não informado. (1955). International Index: A guide to periodical literature in the social sciences and humanities. H. W. Wilson.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Index: A Guide to Periodical Literature in the Social Sciences and Humanities. New York: H. W. Wilson, 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Index: A Guide to Periodical Literature in the Social Sciences and Humanities. H. W. Wilson, 1955.
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