Cochran, William G <br/><br/>
Sampling techniques 

 - 3 
 -  Asia Publishing House, Bombay  1989 
 - 428 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Special topics
<br/><br/><label>Dewey Class. No.: </label>PG 519.8  COC-S3