Hartmen, R. S. (1979). Satellite navigation in the U.S. coast guard. Naval Postgraduate School.
Chicago-referens (17:e uppl.)Hartmen, Richard Sheridan. Satellite Navigation in the U.S. Coast Guard. Monterey, Calif.: Naval Postgraduate School, 1979.
MLA-referens (9:e uppl.)Hartmen, Richard Sheridan. Satellite Navigation in the U.S. Coast Guard. Naval Postgraduate School, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.