TY  - BOOK
AU  - Hartle,James B.
TI  - Gravity: an introduction to Einstein's general relativity 
SN  - 0805386629
AV  - QC173.6  .H37 2003
PY  - 2003///
CY  - San Francisco
PB  - Addison-Wesley
KW  - General relativity (physics)
ER  -