TY  - BOOK
AU  - Pollard Harry
AU  - Pollard Harry
TI  - Mathematical introduction to celestial mechanics
SN  - 0000000000 (hbk)
U1  - B9:7, K6.1 
PY  - 1966///
CY  - New Jersey
PB  -  Prentice Hall     
KW  -  Hamilton-jacobi theory
KW  -  Perturbation theory
KW  - Central force problem
N1  - Index 109-111p
ER  -