Nigam, S P; Gangwar, S S <br/><br/>
Co-ordinate geometry of three dimensions 

 - 2 
 -  Ram Prasad & Sons, Agra  1969 
 - 147 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coordinate systems; Geometry; Mathematics
<br/><br/><label>Dewey Class. No.: </label>516.16  NIG-C2