Preston, Ralph Clausius <br/><br/>
Teaching social studies in the elementary school / 
by  Ralph C. Preston 
 - 3d ed. 
 - New York :  Holt, Rinehart and Winston,  1968. 
 - xi, 370p. :  illus. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences
<br/><br/><label>Dewey Class. No.: </label>372.83  / PRE.T