Selltiz Claire <br/><br/>
Research methods in social relations 

 - New York  Henry Holt And Company  1959 
 - xvi,622p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Y1b4
<br/><br/><label>Dewey Class. No.: </label>Y1b4  / I9