Jones, Gareth   x  <br/><br/>
Vegetation productivity  x  

 - x  
 - London   Longman   1979 
 - xi, 100p.  
<br/><br/>
<br/><br/><label>ISBN: </label>x   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vegetables  Botany  
<br/><br/><label>Dewey Class. No.: </label>581.9/JOV