Isenberg, Joan P & Jacobs, Judith E <br/><br/>
Playthings as learning tools : a parents' guide 

 - John Wiley & Sons, New York  1982 
 - 176p photos 
<br/><br/><label>ISBN: </label>0-471-09042-5 
<br/><br/><label>Dewey Class. No.: </label>649.5 Ise/Jac