Babbie, Earl R. <br/><br/>
The practice of social research / 
Earl Babbie. 
 - 11th ed. 
 - Belmont, CA :  Thomson Wadsworth,  ℗♭2007. 
 - xxiv, 511, [66] p. ;  illustrations ;  24 cm 
<br/><br/><label>ISBN: </label>0495093254 9780495093251 9780495187387 0495187380 9780495128243 0495128244 
<br/><br/><label>LCCN: </label>2005932100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.<br/>Social sciences--Methodology.
<br/><br/><label>LC Class. No.: </label>3000.72