TY  - BOOK
AU  - Singh A.K.
AU  - Mittal. P.K.
TI  - A textbook of differential geometry/ 
SN  - 8124100713 
U1  - 516.35 
PY  - 1996///
CY  - new delhi : 
PB  - Har- anand. 
KW  - textbook
N1  - Includes index.
ER  -