Widmer, Emil Joseph, 1889–1963
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2313972A
- SSN: 155092288
- pdbooks.info ID: 117953
Emil Joseph Widmer Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Military observation balloons (captive and free): a complete treatise on their manufacture, equipment, inspection, and handling, with special instructions for the training of a field balloon company | 1917 | Author | |  | | |  |    
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