TY  - BOOK
AU  - Hale,Francis Joseph
TI  - Introduction to space flight
SN  - 0134819128
U1  - 629.41 
PY  - 0000///New Jersey
PY  - 1994///
CY  - Englewood cliffs
PB  - Prentice-Hall
KW  - Sapce flight
KW  - Astrodynamics
KW  - Orbital mechanics
N1  - Includes bibliographical reference and index
ER  -