TY  - BOOK
AU  - Das,B C
AU  - Mukherjee,B.N.
TI  - HIGHER TRIGONOMETRY
U1  - 516.24 
PY  - 2012///
CY  - KOLKATA
PB  - U.N. DHUR & SONS PRIVATE LTD
KW  - Mathematics-Triconomitrt
ER  -