Rao poduri S R S <br/><br/>
Sampling methodologies : with applications 
Rao poduri S R S 
 - New york  Chapman & Hall  2000 
 - 311 
<br/><br/><label>ISBN: </label>1584882145 
<br/><br/><label>Dewey Class. No.: </label>519.52  / RA-S