TY  - BOOK
AU  - Frankel,Theodore,b.1929
TI  - Gravitational curvature: an introduction to Einstein's theory
SN  - 0716710064
PY  - 1979///
CY  - San Francisco
PB  - W. H. Freeman
KW  - Relativity (Physics)
KW  - Gravitation
N1  - Includes index; Bibliography: p.  167 -168
ER  -