J.M. Powell <br/><br/>
Livestock and sustainable nutrient cycling in mixed farming systems of sub saharan africa.  

 - Addis ababai  ILCA  1993 
 - 560p 
 -  Vol II .
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>636.085  / ILCA