Jacob, A.  Dr. <br/><br/>
Magnesium:  the fifth major plant nutrient/ 
A. Jacob; translated from German by Dr. Norman Walker 
 - London:  Staples Press,  c1958 
 - 159 p.:  plates;  22 cm. 
<br/><br/>Includes bibliographical references: p. 149-159 
<br/><br/><label>ISBN: </label> £ 40 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant nutrients<br/>Plants--Nutrition<br/>Magnesium deficiency disease in plants<br/>Magnesium<br/>Magnesium fertilizers
<br/><br/><label>Dewey Class. No.: </label>631.82