Cannon, Helen (Leighton)  1911- <br/><br/>
Relation of geology and trace elements to nutrition :  abstracts a nd paper based on presentations at a symposium held at the annual meeti ng of the Geoligical Society of America, New York, N.Y. / 
Helen (Lei ghton) Cannon 
 - New York :  Geological Society of America,  1967. 
 - 68 p. :  ill. ;  23 cm. 
 - Geological Society of America. Special papers ;  no. 90 .
<br/><br/> Sponsored by the Geochemical Society 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nutrition.<br/>Trace elements.
<br/><br/><label>Dewey Class. No.: </label>P 612.3 CAN