Tripp, Robert. <br/><br/>
Self-sufficient agriculture :  labour and knowledge in small-scale farming / 
Robert Tripp ; with Catherine Longley ... [et al.]. 
 - London ;  Sterling, VA :  Earthscan,  c2006. 
 - xiv, 242 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1844072975  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural innovations--Developing countries.<br/>Sustainable agriculture--Developing countries.<br/>Farms, Small--Developing countries.
<br/><br/><label>Dewey Class. No.: </label>630.91724 TRI