Introduction to business statistics / 
Weiers , Ronald M. 
 - 3rd ed. 
 - Boston:  Duxbury press,  1998. 
 - xxii,1000 p,: 
<br/><br/><label>ISBN: </label>0534348920 
<br/><br/><label>LC Class. No.: </label>HF1017  / .W44  1998