Heilmann, Gerhard, 1859–(no earlier than 1955)
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2160463A
- pdbooks.info ID: 42415
Gerhard Heilmann Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| The origin of birds | 1927 | Author | |  | |  | | ||