Harms, Thelma F. <br/><br/>
Summary statistics for selenium in vegetation calculated from U.S. Geological Survey data / 
by T.F. Harms 
 - Washington :  U.S. G.P.O.,  1995 
 - iii, 31 p. :  ill., maps ;  28 cm. 
 - U.S. Geological Survey bulletin ;  2117 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Selenium<br/>Plants--Composition<br/>Botany--West (U.S.)<br/>Botanical chemistry
<br/><br/><label>Dewey Class. No.: </label>581.19214 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.3:2117