Johnstown folio, Pennsylvania
By: W. C. Phalen
Edition: Library ed.].
Series: Geologic atlas of the United States -- no. 174; Geologic atlas of the United States -- fol. 174
Publisher: U. S. Geological Survey
Published: 1910
Place of publication: Washington, D. C
Language: eng
Number of pages: 15
Subjects: Geology; Maps
Notes: Cover title.