GRIGG, D.B. <br/><br/>
The Agricultural systems of the world: an evolutionary approach 
/ [by] D.B.Grigg 
 - London  Cambridge University Press  1974 
 - ix, 358 p. 
<br/><br/> Includes appendix, bibliography and index. 
<br/><br/><label>ISBN: </label>521098432 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture-Economic aspects
<br/><br/><label>Dewey Class. No.: </label>338.1  / GRI