Duckham, A. N. (Alec Narraway) <br/><br/>
Farming systems of the world, 
by A. N. Duckham and G. B. Masefield; assisted by R. W. Willey and Kathleen Down. 
 - London,  Chatto & Windus,  1970. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0701113618 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural systems.
<br/><br/><label>LC Class. No.: </label>S 439 DUC 1970