Hay, R. K. M. <br/><br/>
An introduction to the physiology of crop yield / 
by Robert K.M. Hay and Andrew J. Walker. 
 - Essex :  Longman Scientific & Technical ;  Wiley,  1989. 
 - xvi, 292 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [257]-283. 
<br/><br/><label>ISBN: </label>047021192X (Wiley) 
<br/><br/><label>Source: </label>B-14224 
<br/><br/><label>LCCN: </label>88018731  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--Physiology.<br/>Crop yields.
<br/><br/><label>LC Class. No.: </label>SB112.5  / .H39 1989 
<br/><br/><label>Dewey Class. No.: </label>633