TY  - BOOK
AU  - Sachs,R.K
TI  - General relativity for mathematicians
SN  - 978-1-4612-9905-9
AV  - MATH QC173.55 .S34 
PY  - 1977///
CY  - New York
PB  - Springer
KW  - Relativity (physics)
N1  - Includes bibliography and index
ER  -