00350n a2200133 a 4500000002100000001000700021005001700028020001800045082002200063100001700085245004100102260005800143300001500201B B 02853620220203165503.0 a81-7888-027-X a516.303bP1,2 MAT aSharma, A.K. aEncyclopaedia of Analytical Geometry aNew DelhibDominant Publishers and distributorsc2001 a366-685.p.