Babbie, Earl R. <br/><br/>
The practice of social research / 
Earl Babbie. 
 - 5th ed. 
 - Belmont, Calif. :  Wadsworth Pub. Co.,  c1989. 
 - xxvii, 501, [143] p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>053409726X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.<br/>Social sciences--Methodology.<br/>Research--methods<br/>Social Sciences