TY  - BOOK
AU  - Zubrin,Robert
TI  - Entering space
SN  - 1-58542-036-0
U1  - 919.904 
PY  - 1999///
CY  - New york
PB  - Robert Zubrin
KW  - Aviation
KW  - Completing global civilization , Creating a spacefaring civilization
ER  -