"A collaborative project between the University of Minnesota Libraries and the Hennepin County Library, this collection contains posters from government, commercial, and charitable organizations."
Book Sources: Air Service
A selection of books/e-books available in Trible Library.
Click the title for location and availability information.
v. 1. The final report and A tactical history.--v. 2. Early concepts of military aviation.--v. 3. The Battle of St. Mihiel.--v. 4. Postwar review.
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Suggested terms to look for include - diary, diaries, letters, papers, documents, documentary or correspondence.
Combine these these terms with the event or person you are researching. (example: civil war diary)
Also search by subject for specific people and events, then scan the titles for those keywords or others such as memoirs, autobiography, report, or personal narratives.
Off campus access instructions (for e-books)
Flying for the Air Service: The Hughes Brothers in World War I by 
Letters from a War Bird by 
The Price of Honor by 
The U.S. Air Service in World War I by