P.P., P.P.. <br/><br/>
Three Dimentional differential Geometry /  Textual Documents 
P.P.Gupta. 
 - Sl :  Sn ,  1957. 
 -  ill ; 
<br/><br/><label>Subjects--Index Terms: </label>Geometry 
<br/><br/><label>Dewey Class. No.: </label>516.36  / Gu 959 k