Tripp, Robert <br/><br/>
Self-sufficient agriculture :  labour and knowledge in small-scale farming / 
Robert Tripp 
 - London:  Earthscan,   2006. 
 - xiv, 242p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural innovations -- Developing countries<br/>Sustainable agriculture -- Developing countries<br/>Farms, Small -- Developing countries