APA-referens (7:e uppl.)

Reiss, E. W. (1911). The "Simplex" Standard Telegraphic Code. Simplex Code Company.

Chicago-referens (17:e uppl.)

Reiss, Edward W. The "Simplex" Standard Telegraphic Code. New York: Simplex Code Company, 1911.

MLA-referens (8:e uppl.)

Reiss, Edward W. The "Simplex" Standard Telegraphic Code. Simplex Code Company, 1911.