Summers, George W. <br/><br/>
Basic Statistics in Business and Economics 
/ by George W. Summers 
 - California:  Wadsworth Publishing Company, Inc.,  1973. 
 - 445p.; 
<br/><br/><label>ISBN: </label>053400198X 
<br/><br/><label>Dewey Class. No.: </label>380  / SUM/B