Backman, Carl A. <br/><br/>
Introduction to concepts of geometry 
Carl A. Backman 
 - Englewood Cliffs,NJ  Prentice-Hall  c1971 
 - xvi,320p.  ill.;  25cm 
<br/><br/>Includes bibliography 
<br/><br/><label>ISBN: </label>0134796837 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry.