Ashley, George Hall, 1866–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 24871
George Hall Ashley Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Contributions to oil and gas geology of western Pennsylvania | 1933 | Author | |  | |  | | ||
| The Pennsylvania survey, 1919-1922 | 1923 | Author | | | |  | | ||