Techniques of Water-Resources Investigations of the United States Geological Survey  Determination of Minor Elements in Water by Emission Spectroscopy 

 - U.S. Department of the Interior  U.S. 
 - 31p.  fig. 
<br/><br/><label>Nat. Bib. No.: </label>3316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Universal Decimal Class. No.: </label>626/628  / DET