TY  - BOOK
AU  - Hartle James B.
TI  - Gravity :  An introduction to Einstein's general relativity
SN  - 8129700948
U1  - CKxM79, P3 
PY  - 2003///
CY  - New Delhi
PB  - Pearson Education India     
KW  -  GRAVITY
KW  -  PHYSICS
KW  - GRAVITY
ER  -