Westphal,E. <br/><br/>
Agricultural Systems in Ethiopia 

 -  Center of Agricultural Publishing and Documantation   1975 
<br/><br/><label>ISBN: </label>90 220 0556 9 
<br/><br/><label>LC Class. No.: </label>630.03/WES  / 4 
<br/><br/><label>Dewey Class. No.: </label>630.03/WES  / 4