Martorella, Peter H. <br/><br/>
Elementary social studies as a learning system / 
Peter H. Martorella. 
 - New York :  Harper & Row,  c1976. 
 - xvi, 512 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0060442336 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Study and teaching (Elementary)
<br/><br/><label>Dewey Class. No.: </label>372.83044  / MAE 1976