TY  - BOOK
AU  - Hartle,James B
TI  - Gravity : an introduction to Einstein's general relativity 
SN  - 9788131700501
PY  - 2003///
CY  - New Delhi
PB  - Dorling kindersley (India) (Pearson )
KW  - General relativity (Physics)
N1  - Includes bibliographical references (p. 563-567) and index
ER  -