Walker, Helen M. <br/><br/>
Elementary statistical methods / 
Helen M. Walker and Joseph Lev. 
 - 1st Indian ed. 
 - Calcutta :  Oxford and IBH publishing,  1965 
 - xvi, 302p.,  tables : fig. ;  24x16cm. 
<br/><br/> Includes appendix, glossary, formulae, answers and index 
<br/><br/><label>ISBN: </label> : Rs.8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>STATISTICAL MATHEMATICS
<br/><br/><label>Dewey Class. No.: </label>519.5  / WAL-STA