Evans, L. T. <br/><br/>
Crop evolution, adaptation, and yield / 
L.T. Evans. 
 - Cambridge :  Cambridge University Press,  1993. 
 - xi, 500 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0521295580 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--Evolution.<br/>Crops--Adaptation.<br/>Crops yields.