TY  - BOOK
AU  - Berger Marcel
AU  -  Gostiaux Bernard
TI  - Differential geometry: manifolds, curves and surfaces
T2  - Graduate texts in mathematics; 115
U1  - B6:3, M8 
PY  - 1988///
CY  - New York    
PB  -  Springer Verlag       
KW  - Geometry-Differential
ER  -