Hans Raj <br/><br/>
Theory and practice in social research 

 - 2nd 
 - Delhi  Surjeet Publications India        1981 
 - xii, 404p Bibliography p401  cm. 
<br/><br/><label>Source: </label> TB 
<br/><br/><label>Subjects--Topical Terms: </label><br/> SOCIAL SCIENCES<br/>RESEARCH METHODS