The scenery of Pennsylvania : its origin and development based on recent studies of physiographic and glacial history /

Bibliographic Details
Main Author: Ashley, Geo. H. (George Hall), 1866-1951
Format: Book
Language:English
Published: Harrisburg, Pa. : Department of Internal Affairs, Topographic and Geologic Survey, 1933.
Series:Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ; G6.
Subjects:
Description
Item Description:At head of title: Pennsylvania Geological Survey, fourth series.
Contains references.
Physical Description:ix, 91 pages : illustrations ; 23 cm.