Não informado. (2018). Professional Papers of the Signal Service. Chief Signal Officer.
Citação do estilo Chicago (17ª ed.)Não informado. Professional Papers of the Signal Service. Washington: Chief Signal Officer, 2018.
Citação MLA (8ª ed.)Não informado. Professional Papers of the Signal Service. Chief Signal Officer, 2018.
警告：这些引文格式不一定是100％准确.