SCHINER, George <br/><br/>
Mississippian stratigraphy of northwestern Pennsylvania / 
by George R. Schiner and Grant E. Kimmel. 
 -- Washington :   United States Government Printing Office,   1972 
 - 27 p. + plan. -- 
 (Geological  Survey Bulletin  ;  1331-A).
<br/><br/> Fecha real de registro 20-06-1973 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estratigrafía - Pennsylvania
<br/><br/><label>Universal Decimal Class. No.: </label>551.7(748)