Não informado. (2018). Professional Papers of the Signal Service. Chief Signal Officer.
Chicago-Zitierstil (17. Ausg.)Não informado. Professional Papers of the Signal Service. Washington: Chief Signal Officer, 2018.
MLA-Zitierstil (8. Ausg.)Não informado. Professional Papers of the Signal Service. Chief Signal Officer, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.