000 00416nam a2200157Ia 4500
008 170207s9999 xx 000 0 und d
082 _a516.16 NIG-C2
100 _aNigam, S P; Gangwar, S S
245 _aCo-ordinate geometry of three dimensions
250 _a2
260 _bRam Prasad & Sons, Agra
260 _c1969
300 _a147
650 _aCoordinate systems; Geometry; Mathematics
942 _cBOOKS
999 _c13261
_d13261