NORMAN,  DAVID. <br/><br/>
FARMING  SYSTEMS  DEVELOPMENT  AND  CONSERVATION: 

 - ROME,  FOOD  AND  AGRICULTURE  ORGANIZATION OF  THE  UNITED  NATIONS:  1994. 
<br/><br/><label>ISBN: </label>9251034486. 
<br/><br/><label>Dewey Class. No.: </label>631 .4 NOR