Vatsyayan <br/><br/>
Methods and techniques of social survey and research 

 - Delhi  Kedar Nath Ram Nath  1987 
 - 289p. 
<br/><br/><label>Subjects--Index Terms: </label>social survey  research 
<br/><br/><label>Dewey Class. No.: </label>001.8  / VAT