Geospatial Information Agency

vēsture. [2010-12-27]. （原始内容存档于2010-09-18） （拉脱维亚语）.  Latvian Geospatial Information Agency. EuroGeographics. [2023-03-21]. （原始内容存档于2023-03-21） （英国英语）. 

Guinea (Publication 164, 8th edition) Maritime Safety Information Division, National Geospatial-Intelligence Agency, Bethesda, Maryland, OCLC 63680167

[2009-12-23]. （原始内容存档于2015-03-10）.  Basic Information about Estuaries. United States Environmental Protection Agency. [2011-03-14]. （原始内容存档于2012-12-07）.  DAVID

National Geospatial-Intelligence Agency Pereval Kyzyl-Dzhiik (Approved - N)位于GEOnet名称服务的结果, United States National Geospatial-Intelligence Agency China-USSR

Geographic Names Information System. United States Geological Survey. [2008-01-31].  NGA GEOnet Names Server. National Geospatial-Intelligence Agency. 2008-01-30