Roy, K. P. <br/><br/>
Statistical Techniques in Commerce and Economics / 
K. P. Roy 
 - 5th rev. ed. 
 - Culcuta :  Progressive Publishers,  1974 
 - Xv, 377 p. :  ill. ;  25 cm. 
<br/><br/> Includes Index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.
<br/><br/><label>Dewey Class. No.: </label>330.015195  / ROS 1974