Hartfield, John W.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 9098
John W. Hartfield Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Hartfield's Atlantic "future" code, comp | 1921 | Author | |  | |  | | ||
| Hartfield's sterling conversion tables, sterling into American currency and vice versa | 1916 | Author | | | | | | 
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