Letchford, Stanley  1924- <br/><br/>
Business mathematics and statistics / 
by S. Letchford. 
 - 2nd ed. 
 - London:   Cassell,   [1977].  
 - x, 546 p. :  ill. ;  22 cm. 
 - Cassell professional handbook .
<br/><br/> With answers. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0304297607 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>510 LET