Ploghoft, Milton E. <br/><br/>
Social science education in the elementary school 
Ploghoft Milton E. 
 - Columbus, Ohio : Charles E Merrill Publishing Co.  c1971. 
 - xii, 414 p., ills. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0675092396 
<br/><br/><label>LCCN: </label>78147054  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science--Study and teaching.
<br/><br/><label>LC Class. No.: </label>LB1530  / .P57 
<br/><br/><label>Dewey Class. No.: </label>372.8/3