TY  - BOOK
AU  - Klass,Philip J.
TI  - Secret sentries in space
SN  - 0394469720
PY  - 1971///
CY  - New York
PB  - Random House
KW  - Astronautics, Military
KW  - United States
KW  - Russia
KW  - Earth
KW  - Photographs from space
ER  -