Dryland Farming A Systems Approach An Analysis of Dryland Agriculture in Australia 

 - Australia  Sydney University Press  1991 
<br/><br/><label>ISBN: </label>0-424-00169-1 
<br/><br/><label>LC Class. No.: </label>630.072/ECO  / 1 
<br/><br/><label>Dewey Class. No.: </label>630.072/ECO  / 1