Neuman W.lawrence <br/><br/>
Social research methods  Qualitative and Quantative approaches 
Neuman, W Lawrence 
 - 7 th ed 
 - Edinburg Gate  Pearson  2014 
 - 598p  27cm 
<br/><br/><label>ISBN: </label>9781292020235 
<br/><br/><label>LC Class. No.: </label>HM 571  / .N48 2014