Farmer first :  farmer innovation and agricultural research / 
edited by Robert Chambers, Arnold Pacey and Lori Ann Thrupp 
 - London :  Intermediate Technology Publications,  1989 
 - xx, 219 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies and indexes 
<br/><br/><label>ISBN: </label>1853390070