00305nam a2200121Ia 4500008004100000100002500041245004400066260002400110300000900134650001600143942000700159999001700166190216s9999||||xx |||||||||||||| ||und||  aDas Gupta And Prasad 0aAnalytical Geometry Of Three Dimensions  bBharatibhawanc1962  a324p  aMathematics  cBK  c30983d30983