Neuman, W Lawrence. <br/><br/>
Basics of Social Research: Qualitative & Quantitative Approaches 

 - London:  Pearson Education Limited,  2014. 
 - 400 p.  ill.  27 cm. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781292020341 
<br/><br/><label>Dewey Class. No.: </label>301.072 NEUM