TY  - BOOK
AU  - Nelson,Walter C.
AU  - Loft,Ernest E.
TI  - Space mechanics
U1  - 629.411 
PY  - 1962///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Astronautics
KW  - Orbit mechanics
KW  - Artificial satellites
KW  - Sapce trajectories
N1  - Includes index
ER  -