Ashley, Geo. H. (George Hall), 1866–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL122465A
- pdbooks.info ID: 19219
Geo. H. (George Hall) Ashley Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| Guidebook to the geology of the Pennsylvania turnpike | 1942 | Author | |  | |  | | 
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| The oil and gas fields of Pennsylvania | 1922 | Author | | | |  | |
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