Synopsis of military subjects for instruction of balloon observers.
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| Online Access: |
Full Text (via ProQuest) |
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| Corporate Author: | |
| Format: | Government Document eBook |
| Language: | English |
| Published: |
Washington :
U.S. GPO,
1920.
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| Series: | Air Service Info. Circ. Lighter-Than-Air No. 139.
Balloon Notes No. 12. |
| Subjects: |
| Item Description: | Record is based on bibliographic data in ProQuest U.S. Executive Branch Documents, 1910-1932. Reuse except for individual research requires license from ProQuest, LLC. [on military reconnaissance] |
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| Physical Description: | 1 online resource (10 p.), digital, PDF file. |