Som, Ranjan Kumar. <br/><br/>
A manual of sampling techniques / 
Ranjan Kumar Som. 
 - London :  Heinemann Educational,  1973. 
 - xvi, 384 p. : 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0435538659 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sampling (Statistics)
<br/><br/><label>Dewey Class. No.: </label>519.52  / Ma