Engler, Richard E. <br/><br/>
The challenge of diversity / 
by Richard E. Engler 
 - New York :  Harper & Row,  c1964 
 - xiv, 338 p. ;  22 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> USD 6.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Regionalism--United States
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Civilization
<br/><br/><label>Dewey Class. No.: </label>973