00371nam a2200145Ia 4500008004100000082001400041100001800055245003500073260003400108300000800142650001600150650001800166653002400184700001700208170901s1977    xx            000 0 und d  a516bS48P  aSinha, K.D.P. 0aElementary Co-odinate Geometry  aPatnabStudents Friendsc1977  a355  aMathematics  aPure Sciences  aCoordinate geometry  aPrasad, S.B.