Contemporary business mathematics with Canadian applications / 
Hummelbrunner S.A . , Suzanne Coombs . 
 - 8th ed.  Updated 
 - Toronto:  Pearson ,  2009. 
 - xxi,777 p.:  26cm.  cd 
<br/><br/><label>ISBN: </label>9780137141494 
<br/><br/><label>LC Class. No.: </label>HF5691  / .H85  2009