Subsurface stratigraphy of northwestern Pennsylvania : and a resume of gas and oil possibilities of deeper sands / by Charles R. Fettke

Chicago citation style
Fettke, Charles R. (Charles Reinhard), 1888-1959. Subsurface stratigraphy of northwestern Pennsylvania : and a resume of gas and oil possibilities of deeper sands / by Charles R. Fettke. Retrieved from the Digital Public Library of America, https://archive.org/details/subsurfacestrati00fett. (Accessed December 14, 2018.)
APA citation style
Fettke, Charles R. (Charles Reinhard), 1888-1959, Subsurface stratigraphy of northwestern Pennsylvania : and a resume of gas and oil possibilities of deeper sands / by Charles R. Fettke. Retrieved from the Digital Public Library of America, https://archive.org/details/subsurfacestrati00fett
MLA citation style
Fettke, Charles R. (Charles Reinhard), 1888-1959. Retrieved from the Digital Public Library of America <https://archive.org/details/subsurfacestrati00fett>.
Note: These citations are programmatically generated and may be incomplete.