TY  - BOOK
AU  - Balasubrahmanyam,P;Venkatachary,P R;Venkitaraman,G R
TI  - Trigonometry
U1  - 516.24 BAL-T 
PY  - 1972///
CY  - Madras
PB  - Rochouse And Sons
KW  - Mathematics
ER  -