Das, S.P.. <br/><br/>
Elementary Statistics /  Textual Documents 
S.P.Das & A.M.Sen Gupta. 
 - 3rd ed. / 
 - Calcutta :  Chuckervertty, Chatterjee & Co., LTD ,  1946. 
 - 315p. ;  18cm. 
<br/><br/><label>Subjects--Index Terms: </label>Statistics G-Physics 
<br/><br/><label>Dewey Class. No.: </label>531.1  / D 26 El