Underwood, Eric J.  1905- <br/><br/>
Trace elements in human and animal nutrition / 
Eric J. Underwood 
 - 4th ed. 
 - New York :  Academic Press,  1977 
 - xii, 545 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0127090657 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trace Elements<br/>Trace elements in nutrition<br/>Trace elements in animal nutrition