The biology of crop productivity/ 
edited by Peter S. Carlson. 
 - San Francisco :  Academic Press,  1980. 
 - xvii, 471 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0121598500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop yields.<br/>Crops--Physiology.
<br/><br/><label>LC Class. No.: </label>S494.5.P75  / B56 1980