Geometry/  English. 
Kenneth J.Travers, LeRoy C.Dalton and Katherine P.Layton 
 - River Forest:  Laidlaw Brother Publishers,  1978. 
 - x,646p.:  ill.;  23cm. 
<br/><br/><label>ISBN: </label>0844518425 
<br/><br/><label>Dewey Class. No.: </label>514  / TRA