G.L.Thirkettle <br/><br/>
Wheldon's business statistics and statistical method / 
Thirkettle G.L. 
 - Estover :  Macdonald and Evans ltd ;  1981. 
 - 278 pages. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0712123245 
<br/><br/><label>LC Class. No.: </label>HA 29   / .T45 1981