Underwood, Eric J.    1905- <br/><br/>
Trace elements in human and animal nutrition  
[by] E.J. Underwood. 
 - 3d ed. 
 - New York :    Academic Press,    1971. 
 - xiv, 543 p.:    ill. ;    24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Trace elements in nutrition.<br/> Trace elements in animal nutrition.