Gustafson, Roy David. <br/><br/>
Elementary plane geometry / 
R. David Gustafson Peter D. Frisk. 
 - New York :  Wiley,  1973. 
 - xi, 218 p. :  ill. 
<br/><br/><label>ISBN: </label>0471337005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Plane.