Johnson, Earl S. <br/><br/>
Theory and practice of the social studies. 

 - New York,  Macmillan  [1956] 
 - 476 p.  illus.  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>301  / JOH N56T