TY  - BOOK
AU  - Devsharma, B K  .
AU  - Nath,D  .
TI  - Textbook of mathematics / 
SN  - 81  224  0831  1
U1  - 510 
PY  - 1997///
CY  - New Delhi : 
PB  - New Age International Ltd , 
N1  - 20309 - CSS
ER  -