Gupta, S. P. <br/><br/>
Statistical methods / 
by S. P. Gupta  
 - 21st ed. 
 - New delhi :  Sultan Chand &Sons ,  1985 . 
 -  Hard Back 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics<br/>Collection of data<br/>Sampling and sample designs
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP-S