Jacob, Arthur. <br/><br/>
Magnesium, the fifth major plant nutrient 

 - London :  Staples,  1958 
 - 159 p.  : ilus 
<br/><br/><label>LCCN: </label>16589 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magnesio.<br/>Plantas--Nutrición.
<br/><br/><label>Dewey Class. No.: </label>581.13354  / J32