Preston, Ralph C. <br/><br/>
Teaching World Understanding 
/ by Ralph C. Preston 
 - New York :  Prentice-Hall of India,  1955 
 - X, 203 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Educational Psychology
<br/><br/><label>Dewey Class. No.: </label>370.19  / PRE-T