Hanssen, Helmer Julius, 1870–
Nationality: Undetermined, possibly 
(Norway)
Identities and Authority Control
- Open Library: OL2331700A
- pdbooks.info ID: 15023
Helmer Julius Hanssen Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
 |  |  | 
| ||||||
| Nordostpassagen | 1921 | Author | |  |  |  | | 
| |
| Voyages of a modern viking | 1936 | Author | | | | | | ||