Babbie,Earl <br/><br/>
The practice of social research 
Earl Babbie 
 - 13th ed  
 - New Delhi ;   Cengage Learning pvt.ltd  2013 
 - 584p. 
<br/><br/><label>ISBN: </label>108131520110 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The practice of social research--Social Inquiry
<br/><br/><label>Dewey Class. No.: </label>300  / BAB/T