Wiliams,Collin <br/><br/>
Simple economics and Bookkeeping for fish farmers/ 
Collins Williams, 
 - Italy:  Food and Agriculture Organization,  1992 
 - v, 96 pages.:  ill.;  18cm 
<br/><br/><label>ISBN: </label>789251030028 
<br/><br/><label>LC Class. No.: </label>SH 329.E55 Wil