TY  - BOOK
AU  - Baker,Robert M.L., Makemson, Maud W.
AU  - x
TI  - An introductin to astrodynamics: x
SN  - x
U1  - 629.411/bai 
PY  - 1997///
CY  - N.Y.
PB  - Academic Press
KW  - Astrodynamics
N1  - x
ER  -