Martorella Peter H <br/><br/>
Concept learning in the social studies models for 

 - Toronto  Internaitonal Textbook Co          1971 
 - x, 157p.  cm. 
<br/><br/> Bib at the end of each chapter 
<br/><br/><label>ISBN: </label>070022280 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>T:2(Siam), L1