Understanding social problems / 
by Albert Schaffer ... [et al.] 
 - Columbus, Ohio :  Merrill,  1970 
 - vii, 358 p. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0675093317 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Social conditions--1960-1980