Angola; official standard names approved by the United States Board on Geographic Names

Chicago citation style
United States. Office of Geography. Angola; official standard names approved by the United States Board on Geographic Names. 1956. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002559012. (Accessed December 19, 2018.)
APA citation style
United States. Office of Geography, (1956) Angola; official standard names approved by the United States Board on Geographic Names. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/002559012
MLA citation style
United States. Office of Geography. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/002559012>.
Note: These citations are programmatically generated and may be incomplete.