TY  - BOOK
AU  - Pressel,Philip
AU  - Allen,Ned
TI  - Meeting the challenge: the Hexagon KH-9 reconnaissance satellite 
T2  - Library of flight
AV  - UG1523 .P73 2013
U1  - 358/.88 23
PY  - 2013///]
CY  - Reston, Virginia
PB  - Published by American Institute of Aeronautics and Astronautics, Inc.
KW  - Space surveillance
KW  - United States
KW  - History
KW  - Artificial satellites, American
KW  - Astronautics, Military
KW  - Military surveillance
KW  - Electronic books
N1  - Includes bibliographical references and index
UR  - https://ebookcentral.proquest.com/lib/nird-ebooks/detail.action?docID=3111699
ER  -