Hay, Robert K. M. <br/><br/>
An introduction to the physiology of crop yield / 
by Robert K.M. Hay and Andrew J. Walker. 
 - Harlow, Essex, England  Longman Scientific & Technical  1989. 
 - xvi, 292 p. :ill.  Hbk 
<br/><br/><label>ISBN: </label>0582408083 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--Physiology.<br/>Crop yields
<br/><br/><label>LC Class. No.: </label>SB112.5.H3 1989