Unated States Board on Geographic Names. (1976). United States Board on Geographic Names, 2ed (2ed.).
Cita Chicago Style (17a ed.)Unated States Board on Geographic Names. United States Board on Geographic Names, 2ed. 2ed. Washington DC - EEUU, 1976.
Cita MLA (8a ed.)Unated States Board on Geographic Names. United States Board on Geographic Names, 2ed. 2ed. 1976.
Precaución: Estas citas no son 100% exactas.