Harvey, J. H.  <br/><br/>
The Arithmetic of Commerce: 

 - 7th ed. 
 - Great Britain:  Cassell Ltd,  1985. 
 - 188p.:  ill.: 
<br/><br/><label>ISBN: </label>0304298247 
<br/><br/><label>LC Class. No.: </label>HF5691.H3har  / 1985.