TY  - BOOK
AU  - Das,B.C,
TI  - Intermediate Trigonometry
SN  - 81-85624-85-2
U1  - 514 
CY  - Kolkata
PB  - U.N.Dhur & Sons Pvt Ltd.
KW  - Intermediate Trigonometry
KW  - G-Mathematics
ER  -