Comments: The story of the Pennsylvania survey

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Bibliographic Details
Corporate Author:	Pennsylvania. Bureau of Topographic and Geologic Survey.
Contributors:	Ashley, Geo. H. 1866-1951.
Format:	Book
Language:	English
Published:	Harrisburg : Dept. of internal affairs, Bureau of topographic and geologic survey, 1920.
Series:	Miscellaneous papers, no.1
Subjects and Genres:	Pennsylvania. > Bureau of Topographic and Geologic Survey
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