Gilman, A. (1874). Seven historic ages, or, talks about kings, queens, and barbarians. Hurd and Houghton.
Lua i Stíl Chicago (17ú heag.)Gilman, Arthur. Seven Historic Ages, or, Talks About Kings, Queens, and Barbarians. New York: Hurd and Houghton, 1874.
Lua MLA (8ú heag.)Gilman, Arthur. Seven Historic Ages, or, Talks About Kings, Queens, and Barbarians. Hurd and Houghton, 1874.
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