Latrobe, J. H. B. (1855). The history of Mason & Dixon's Line: Contained in an address delivered by John H.B. Latrobe of Maryland, before the Historical Society of Pennsylvania, November 8, 1854. Philadelphia.
Chicago-referens (17:e uppl.)Latrobe, John H. B. The History of Mason & Dixon's Line: Contained in an Address Delivered by John H.B. Latrobe of Maryland, Before the Historical Society of Pennsylvania, November 8, 1854. Philadelphia, 1855.
MLA-referens (8:e uppl.)Latrobe, John H. B. The History of Mason & Dixon's Line: Contained in an Address Delivered by John H.B. Latrobe of Maryland, Before the Historical Society of Pennsylvania, November 8, 1854. Philadelphia, 1855.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.