Books by Frederick G. Clapp
Geology of eastern Iran
Geology of eastern Iran
South America big field for pe
South America big field for petroleum development
Petroleum and natural gas reso
Petroleum and natural gas resources of Canada
Underground waters of southern Maine
Amity folio [Pennsylvania
Amity folio [Pennsylvania
Economic geology of the Amity quadrangle, eastern Washington County, Pennsylvania
Rogersville folio [Pennsylvani
Rogersville folio [Pennsylvania
Patoka folio, Indiana-Illinois
Patoka folio, Indiana-Illinois