Business statistics in practice / 
Bowerman , Bruce L. 
 - 2nd ed 
 - Toronto:  McGraw-Hill Ryerson ,  2011. 
 - xvi,692 p,: 
<br/><br/><label>ISBN: </label>9780070002371 
<br/><br/><label>LC Class. No.: </label>HF1017  / .B68  2011