BERGIN, M. J. <br/><br/>
Bedrock geology of the Penn Yan and Keuka park quadrangles New York / 
by M. J. Bergin. 
 -- Washington :   United States Government Printing Office,   1964 
 - 35 p. + map. -- 
 (Geological Survey Bulletin  ;  1161-G).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estratigrafía<br/>Geología<br/>New York
<br/><br/><label>Universal Decimal Class. No.: </label>551.7(747)