Johnson, Earl S.  1894-1986 <br/><br/>
Theory and practice of the social studies / 
Earl S. Johnson. 
 - New York :  Macmillan,  1956. 
 - xviii, 476 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Study and teaching
<br/><br/><label>Dewey Class. No.: </label>300.71  / JOT 1956