The scenery of Pennsylvania
Subtitle: its origin and development based on recent studies of physiographic and glacial history
By: as interpreted by George H. Ashley
Series: Pennsylvania. Bureau of Topographic and Geologic Survey Bulletin -- G no. 6; Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) -- G no. 6.
Publisher: Department of Internal Affairs, Topographic and Geologic Survey
Published: 1933
Place of publication: Harrisburg, Pa
Language: eng
Number of pages: 91
Subjects: Physical geography; Description and travel
Notes: Contains references.