K.P.R. Vittal <br/><br/>
Sustainability of practices of dryland agriculture : Methodology and assessment 

 - Hyderbad  Central Research Institute for dryland Agriculture  2002 
 - 100p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>631.586  / AICRPDA