Willson, M. (1878). Outlines of history: Illustrated by numerous geographical and historical notes ans maps (Rev. University Ed.). Ivison, Blakeman, Taylor & Co..
Chicago-referens (17:e uppl.)Willson, Marcius. Outlines of History: Illustrated by Numerous Geographical and Historical Notes Ans Maps. Rev. University Ed. New York ; Chicago: Ivison, Blakeman, Taylor & Co., 1878.
MLA-referens (8:e uppl.)Willson, Marcius. Outlines of History: Illustrated by Numerous Geographical and Historical Notes Ans Maps. Rev. University Ed. Ivison, Blakeman, Taylor & Co., 1878.
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