Preston Ralph C <br/><br/>
Teaching social studies in the elementary school 

 - 3rd 
 -  1968 
<br/><br/><label>Standard No.: </label>149,583 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T15:3:Y, K8