Wallace, T. <br/><br/>
The diagnosis of mineral deficiences in plants - By visual symptoms - A colour atlas and guide 

<br/><br/> Donacion Ing. Agr. A. Speroni 
<br/><br/> Lab.de Fisiologia Vegetal 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fisiología