TY  - BOOK
AU  - Roy, Archie E. 
TI  - The foundations of astrodynamics
U1  - 521.1 
PY  - 1965///
CY  - New York
PB  - Macmillan Co.
KW  - Astrodynamics
KW  - Astronomia
KW  - Mecanica celeste
KW  - Astronomy
KW  - Astrophysics & Space Science
KW  - Cosmology
ER  -