Neuman, W. Lawrence. <br/><br/>
Social research methods :  qualitative and quantitative approaches / 
W. Lawrence Neuman. 
 - 7th ed.  International ed. 
 - Boston :  Allyn & Bacon,  c2011. 
 - viii,631p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography (p. 577-615). 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>ISBN: </label>9780205786831 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology.<br/>Social Science.
<br/><br/><label>Dewey Class. No.: </label>301.072/NES