Shri amm murugappa chettiar research centre :  proceedings on revival of organic farming 
/ edited by T.M. Vatsala 
 - New Delhi :  Council for Advancement of People's Action and Rural Technology,  2001. 
 - iii, 71 p. ;  28 cm. 
<br/><br/><label>Dewey Class. No.: </label>631.523 VAT  / 774