BiblioVault may have an electronic file which would meet your requirements for this title:
Knowing by Ear: Listening to Voice Recordings with African Prisoners of War in German Camps (1915–1918)
Anette Hoffmann
Paper: 978-1-4780-3002-7
Cloth: 978-1-4780-2484-2
Electronic: 978-1-4780-5902-8