Geology and mineral resources of the Ramey and Houtzdale Quadrangles, Clearfield and Centre Counties, Pennsylvania
By: Gary B. Glass ... [et al.]
Series: Atlas - Pennsylvania Geological Survey ; 85cd
Published: 1977
Place of publication: Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1977
Language: eng
Number of pages: 94