TY  - BOOK
T1  - Asteroids :an exploration assessment : a workshop /
CY  - Washington :
CY  - Springfield, Va. :
AU  - Morrison, David,
AU  - Wells, William C.,
AU  - Anders, Edward,
CN  - NAS 1.55:
CN  - QB651
PB  - National Aeronautics and Space Administration,      Scientific and Technical Information Office ;
PB  - for sale by the National Technical Information Service, 1978.
PP  - Washington :
PP  - Springfield, Va. :
ID  - 180250
KW  - Asteroids
TI  - Asteroids :an exploration assessment : a workshop /
ER  -