Business Statistics / 
Darryl , Smith ; Chua Clare  
 - 9th custom edition  
 - Toronto:  Pearson ,  2012. 
 - xiv,801 p,: 
<br/><br/><label>ISBN: </label>1256821349 
<br/><br/><label>LC Class. No.: </label>HF1017  / .B87  2012