Preston, Ralph C. <br/><br/>
Teaching social studies inthe elementary school / 
Ralph C. Preston 
 - New York :  Holt,  rinchart and winston, 1958. 
 - 382 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Group Work.
<br/><br/><label>Dewey Class. No.: </label>307  / P936T