Geology of rocks of Pennsylvanian age in the Southern Half of the Tremont Quadrangle Schuylkill county, Pennsylvania /
by Gordon H. Wood...[et al.].
-- Washington : United States Government Printing Office, 1962
- P. 181-208 + map. --
(Geological Survey Bulletin ; 1112-F).
Pennsylvania
Petrología
Rocas
552(748)
Pennsylvania
Petrología
Rocas
552(748)