Robertson A. F. <br/><br/>
Dynamics of productive relationships    African sha    
Robertson A. F. 
 - Cambridge  Cambridge University Press          1987 
 - xix, 321p. Bibliography p.278-311  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dynamic Farming
<br/><br/><label>Dewey Class. No.: </label>X9(J9C).6.N8, M7