Catalogue of conservation practices for agriculture on sloping land / 
edited by Arturo A. Gomez, David E. Swete Kelly and Ma. Theresa A. Baril. 
 - College, Los Banos Laguna :  SEAMEO SEARCA,  c1998. 
 - 158 pages :  Illustration ;  28 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>971560014X