Hammar, Park G.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 58822
Park G. Hammar Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Greater cheer and greater efficiency for well people | 1932 | Author | |  | |  | | ||
| Growing young and staying young | 1929 | Author | | | | | | ||