Babbie, Earl <br/><br/>
The practice of social research / 
Earl Babbie. 
 - 9th ed. 
 - USA :  Wadsworth, Thomson Learning,  2000. 
 - xxiii, 498 p.  23 cm. 
<br/><br/><label>ISBN: </label>0324574912 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research<br/>Social sciences--Methodology<br/>Social sciences--Research--Methodology
<br/><br/><label>Dewey Class. No.: </label>300.72  / BAB