Hänvisningar gällande denna post

APA-referens (7:e uppl.)
International Boundary Commission. (1899). Boundary between the United States and Mexico, as surveyed and marked. I.B.C.
Chicago-referens (17:e uppl.)
International Boundary Commission. Boundary Between the United States and Mexico, as Surveyed and Marked. I.B.C, 1899.
MLA-referens (9:e uppl.)
International Boundary Commission. Boundary Between the United States and Mexico, as Surveyed and Marked. I.B.C, 1899.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.