Benjamin, J. R. (1994). A student's guide to history (6th ed.). St. Martin's.
Lua i Stíl Chicago (17ú heag.)Benjamin, Jules R. A Student's Guide to History. 6th ed. New York: St. Martin's, 1994.
Lua MLA (9ú heag.)Benjamin, Jules R. A Student's Guide to History. 6th ed. St. Martin's, 1994.
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