Black,James A. <br/><br/>
Methods And Issues in Social Research 
James A.Black 
 - Islamabad  National Book Foundation  2008 
 - 444 p. 
<br/><br/> H.B 
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Dewey Class. No.: </label>300.72 BLA