TY  - BOOK
AU  - Das. B.C.
TI  - Higher Trigonometry
SN  - 81-85624-23-2
U1  - 516.24/D229h 
PY  - 1996///
CY  - Calcutta
PB  - U.N. Dhur & Sons Pvt. Ltd.
KW  - Mathematics
N1  - Department of Computer Science & Engineering
N2  - Higher, Trigonometry
ER  -