Gupta,C.B. <br/><br/>
Introduction to statistical methods.- 23rd rev ed. 
C.B.Gupta and Vijay Gupta 
 - 23rd rev ed. 
 - New Delhi  Vikas  2004 
 - xxxvii,829p. 
<br/><br/><label>Subjects--Index Terms: </label>Statistical methods 
<br/><br/><label>Universal Decimal Class. No.: </label>519.237  / GUP