(1882). Armstrong's primer of United States history: For school and family use. With maps (4th ed.). A.C. Armstrong & Son.
Lua i Stíl Chicago (17ú heag.)Armstrong's Primer of United States History: For School and Family Use. With Maps. 4th ed. New York: A.C. Armstrong & Son, 1882.
Lua MLA (8ú heag.)Armstrong's Primer of United States History: For School and Family Use. With Maps. 4th ed. A.C. Armstrong & Son, 1882.
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