Walliman,N <br/><br/>
Social Research Methods/ 
Nicholas Williman 
 - Los Angeles;  SAGE Publications,  2007 
 - 224p,;  include reference and index 
<br/><br/><label>ISBN: </label>9781412910613 978-1-4129-1062-0 
<br/><br/><label>Dewey Class. No.: </label>300.72 WAL