Pearson, Craig John. <br/><br/>
Control of crop productivity 

 - Orlando :  Academic Press,  1984 
 - 315 p.  : gráfs. 
<br/><br/><label>LCCN: </label>38276 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos--Rendimiento.
<br/><br/><label>Dewey Class. No.: </label>633  / P4