Welchons, A. M. <br/><br/>
Plane geometry 

 - Boston:  Ginn and Company,  1961. 
 - 584p.:  ill.;  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Plane
<br/><br/><label>LC Class. No.: </label>QA445.W4