TY  - BOOK
AU  - MITTAL, S C
AU  - TIWARI, B M L
AU  - SHARMA, J N
TI  - Trigonometry
U1  - L8-9;3 
PY  - 1978///
CY  - Meerut
PB  - Pragati Prakashan
KW  - TRIGONOMETRY
ER  -