United States Library of Congress. Classification Division. (1950). Classification. Class H: Social sciences (3rd ed.). U. S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States Library of Congress. Classification Division. Classification. Class H: Social Sciences. 3rd ed. Washington: U. S. Government Printing Office, 1950.
MLA citiranjeUnited States Library of Congress. Classification Division. Classification. Class H: Social Sciences. 3rd ed. U. S. Government Printing Office, 1950.
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