Vasey, Daniel E. <br/><br/>
Ecological history of agriculture 

 - Iowa  State University Press  1992 
 - xi,145p.  xerox copy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>J0G:5v
<br/><br/><label>Dewey Class. No.: </label>J0G:5v  / M2