JOHNSON B.C. <br/><br/>
PHYSIOLOGICAL PROCESSES LIMITING PLANT PRODUCTIVITY 

 - LONDON   BUTTERWORTHS  1981 
<br/><br/><label>ISBN: </label>0 408 10649 2 
<br/><br/><label>LC Class. No.: </label>631.54/JOH  / 2 
<br/><br/><label>Dewey Class. No.: </label>631.54/JOH  / 2