Template:Averbach
Problem Solving Through Recreational Mathematics by Bonnie Averbach and Orin Chein
<html><a href="http://www.amazon.com/gp/product/0486409171?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0486409171">Problem Solving Through Recreational Mathematics</a><img src="http://www.assoc-amazon.com/e/ir?t=matpuzwik-20&l=as2&o=1&a=0486409171" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></html>