Briggs, G. E. <br/><br/>
Plant yield and the intensity of external factors. Mitscherlich's Wirkungsgesets 

<br/><br/> Sobretiro de : Ann. Bot. 39 : 475-502, 1925 
<br/><br/><label>LCCN: </label>24138 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas--Crecimiento--Aditivos.