Fowler, Floyd J.,  Jr. <br/><br/>
Survey Research Methods / 
Floyd J. Fowler 
 - 2a ed. 
 - Los Angeles, Cal. :  SAGE Publications,  c1993 
 - 156 p. :  tbs. ;  22 cm. 
<br/><br/><label>ISBN: </label>0803950489 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encuestas sociales<br/>Servicios sociales
<br/><br/><label>LC Class. No.: </label>HN 29  / F69.1993