Harlan, Jack R. <br/><br/>
Crops & Man 

 - 2 
 -  Madison, Wis.: American Society of Agronomy : Crop Science Society of America  1992 
 - xiii, 284 s. : ill. 
<br/><br/><label>ISBN: </label>0-89118-107-5 
<br/><br/><label>Subjects--Index Terms: </label>CROPS AGRICULTURE HISTORY 
<br/><br/><label>Dewey Class. No.: </label>581.63