Business statistics in practice / 
Bowerman , Bruce L. [et..al] 
 - Toronto:  McGraw hill/ Ryerson ,  2008. 
 - xvi,468 p,: 
<br/><br/><label>Nat. Bib. No.: </label>
<br/><br/><label>LC Class. No.: </label>HF1017  / .B68  2008