Hartley, W. H., & Vincent, W. S. (1974). American civics (2d ed.). Harcourt Brace Jovanovich.
Chicago Style (17th ed.) CitationHartley, William Harrison, and William Shafer Vincent. American Civics. 2d ed. New York: Harcourt Brace Jovanovich, 1974.
MLA (8th ed.) CitationHartley, William Harrison, and William Shafer Vincent. American Civics. 2d ed. Harcourt Brace Jovanovich, 1974.
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