Robbins, R. (1834). The world displayed: In its history and geography : embracing a history of the world from the creation to the present day. H. Savage.
Chicago-referens (17:e uppl.)Robbins, Royal. The World Displayed: In Its History and Geography : Embracing a History of the World from the Creation to the Present Day. New-York: H. Savage, 1834.
MLA-referens (8:e uppl.)Robbins, Royal. The World Displayed: In Its History and Geography : Embracing a History of the World from the Creation to the Present Day. H. Savage, 1834.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.