Rusczyk, Richard <br/><br/>
Art of problem solving  Introduction to geometry 

 - California  AOPS Incorporated  2006 
 - xiv, 481p;  
<br/><br/><label>ISBN: </label>977304523 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry -- Problem solving<br/>Mathematics(Geometry) -- Problem solving<br/>Problem solving -- Geometry