Commercial airships
1920
XIII, 235 S.
Miscellaneous
English
RVK: | ZO 7320 |
Airships for commercial purposes
Engineering Index Backfile | 1919
AIRSHIPS FOR COMMERCIAL PURPOSES
SAE Technical Papers | 1933
|Airships for commercial purposes
Engineering Index Backfile | 1919
Airships and their commercial possibilities
Engineering Index Backfile | 1919
|Airships practical for commercial use
Engineering Index Backfile | 1919