Short manual on sampling. 

 - New York  UN           1960 
 - vi,214p.  cm. 
 - Studies in methods series F;9 .
<br/><br/> Bibliography :P.214; Appendix :197-213p. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>B281.N60, K0.1/UN