Guide to the highway geology from Harrisburg to Bald Eagle Mountain
By: by Bradford Willard, Richard Conlin, and Donald Hoskins
Series: Pennsylvania. Geological survey, 4th, 1919- Bulletin -- G no. 29; Bulletin (Pennsylvania Geological Survey) -- G no. 29.
Publisher: Topographic and geological survey
Published: 1958
Place of publication: [Harrisburg]
Language: eng
Number of pages: 38
Notes: Four folded colored maps in pocket in back of book.

"Selected references": p. 27.