HELLEY, Edward J. <br/><br/>
Historic flood information for northern California streams from geological and botanical evidence / 
by Edward J. Helley and Valmore C. Lamarche. 
 -- Washington :   United States Government Printing Office,   1973 
 - 16 p. + map. -- 
 (Geological Survey Professional Paper  ;  485-E).
<br/><br/><label>Subjects--Topical Terms: </label><br/>California<br/>Precipitaciones - Análisis
<br/><br/><label>Universal Decimal Class. No.: </label>551.577(794)