Hannagan Tim <br/><br/>
Effective use of statistics :  Practical guide for managers 
Hannagan Tim 
 - 2 
 - London  London, Kogan page  1999 
 - x,162 
<br/><br/><label>ISBN: </label>0-7494-2969-0 
<br/><br/><label>Source: </label>Textbook