APA-referens (7:e uppl.)
Hubbard, B. (2009). American boundaries: The nation, the states, the rectangular survey. University of Chicago Press.
Chicago-referens (17:e uppl.)
Hubbard, Bill. American Boundaries: The Nation, the States, the Rectangular Survey. Chicago: University of Chicago Press, 2009.
MLA-referens (9:e uppl.)
Hubbard, Bill. American Boundaries: The Nation, the States, the Rectangular Survey. University of Chicago Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.