Hills, Ralph Winchester
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2410958A
- pdbooks.info ID: 122793
Ralph Winchester Hills Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Machine drawing | 1st ed. | 1917 | Author | |  | |  | |    
|