TY  - BOOK
ED  - National Research Council (U.S.). Space Science Board. Study Steering Group
TI  - Space science in the twenty-first century: imperatives for the decades 1995 to 2015
SN  - 0309038383
PY  - 1988///
CY  - Washington, D. C.
PB  - National Academy Press
KW  - Space sciences
KW  - Outer space
KW  - Exploration
ER  -