Ketner, Keith Brindley,  1921- <br/><br/>
Mid-Permian Phosphoria Sea in Nevada and the upwelling model / 
By Keith B. Ketner. 
 - Reston, Va. :  U.S. Geological Survey,  2009. 
 - v, 21 p. :  col. ill., map ;  28 cm. 
 - Professional paper ;  1764 .
 - U.S. Geological Survey professional paper ;  1764 .
<br/><br/>Includes bibliogr. references (p. 17-21). 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Permian<br/>Formations (Geology)--Nevada.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Phosphoria Formation
<br/><br/><label>Dewey Class. No.: </label>551.7/5609793