01448oam 2200409Ia 450 991070204480332120190308090651.0(CKB)5470000002423681(OCoLC)807994962(EXLCZ)99547000000242368120120823d2012 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierHexagon (KH-9) mapping camera program and evolution[electronic resource] /Maurice G. Burnett]Chantilly, VA :Center for the Study of National Reconnaissance,[2012]1 online resource (364 unnumbered pages) color illustrations, color maps"April 2012."Title from title screen (viewed on Aug. 23, 2012).Hexagon Space surveillanceUnited StatesHistoryAstronautics, MilitaryUnited StatesArtificial satellites, AmericanHistorySpace surveillanceHistory.Astronautics, MilitaryArtificial satellites, AmericanHistory.Burnett Maurice G1416135Center for the Study of National Reconnaissance (U.S.)GPOGPOGPOBOOK9910702044803321Hexagon (KH-9) mapping camera program and evolution3520387UNINA