Groundwork of commerce book 2 
Jones H.L [and] R.P Jones 
 - 6th edition. 
 - London,  Edward anold.  1978. 
 - 373p. 
<br/><br/><label>ISBN: </label>0-7131-0222-5 
<br/><br/><label>LC Class. No.: </label>HF 1007   / .J66 1978