Ecofarming - Ecologically and Socially Sustainable Land Management in Africa :  Proceedings of an International Training Course-Workshop held from November 16 to December 11, 1998 in Ethiopia / 
edited by Sahle Tesfai and Hartmut Gast. 
 - Feldafing, Germany.:,  Deutsche Stiftung f r internationale Entwicklung (DSE), Zentralstelle f r Ernh̃rung und Landwirtschaft, (ZEL) , ;  c1999. 
 - 299 p. ;  20 cm. 
<br/><br/><label>Dewey Class. No.: </label>AFR 333.715 Eco 1999