TY  - BOOK
AU  - Sinha, K. C. and Roy, P. K.
TI  - A text book of co-ordinate geometry: A text book of co-ordinate geometry, Patna : Students Friends, 2002
U1  - 516.5 
PY  - 2002///
CY  - Patna
PB  - Students Friends
ER  -