Holt California mathematics:   course 2 chapter 12 resource file. 

 - Orlando, FL :  Holt, Rinehart and Winston,  [2008]. 
 - 71 p.:   ill.  27 cm. 
<br/><br/><br/>in English 
<br/><br/><label>ISBN: </label>13: 978-0-03-094568-7 
<br/><br/><label>LC Class. No.: </label>510 H74 [c2008] Ch.12