Babbie, Earl <br/><br/>
Practice of social research 

 - 9th ed. 
 - Belmont  Wadsworth Publishing Company  2001 
 - xxiii,116  Hb 
<br/><br/><label>ISBN: </label>0-534-57491-2 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>001.42