Hirth, Hellmuth
Nationality: Undetermined, possibly 
(Unknown (outside United States))
Identities and Authority Control
- pdbooks.info ID: 125591
Hellmuth Hirth Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| 20000 Kilometer im Luftmeer | 1913 | Author | |  |  | | | 
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| Meine flugerlebnisse; 2. durchgesehene und erweiterte aufl. von 20000 kilometer im luftmeer | 1915 | Author | | | | | |
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