Kohl Herbert R <br/><br/>
Writing maths and games in the open classroom 

 - London, UK  Methuen and Company Limited  1974 
 - xi,200p. 
<br/><br/><label>ISBN: </label>0-416-83930-4 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education