Cita APA (7a ed.)

Sommer, E., & Smith, J. R. (2018). Luftwaffe eagle: A WWII German airman's story. Grub Street.

Cita Chicago Style (17a ed.)

Sommer, Erich, y J. Richard Smith. Luftwaffe Eagle: A WWII German Airman's Story. London: Grub Street, 2018.

Cita MLA (8a ed.)

Sommer, Erich, y J. Richard Smith. Luftwaffe Eagle: A WWII German Airman's Story. Grub Street, 2018.