Learning Sage 50 Accounting 2015 :  a Modular Approach / 
Freeman and smith . 
 - Custom edition 
 - Toronto:  Nelson Education ,  2016. 
 - 636 p. 
<br/><br/><label>ISBN: </label>0176703462 
<br/><br/><label>LC Class. No.: </label>HF5635  / .L42 2016