Instruments of social research 
Jaspal Singh 
 - New Delhi  Rawat Publications  2011 
 - xxiii,312p.;  23cm. 
<br/><br/><label>ISBN: </label>978-81-316-0429-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology-Research-Methodology
<br/><br/><label>Dewey Class. No.: </label>301.0723  / SIN