TY  - BOOK
AU  - HARTLE (James B)
TI  - Gravity: an introduction to Einsteins general relativity
SN  - 978-81-317-0050-1
U1  - 530.11 HARG 
PY  - 2007///
CY  - New Delhi
PB  - Pearson
KW  - Physics
KW  - Theoretical Physics
ER  -