Babbie, Earl. <br/><br/>
The practice of social research / 
Earl Babbie. 
 - Twelfth edition. 
 - xxiv, 530; A33, G12; B12; A19 pages ;  23 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780495598428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Research<br/>Research Methods