APA (7e ed.) Bronvermelding

International Cable Directory Company & Western Union Telegraphy Company. International cable register of the world in conjunction with Western Union telegraphic code. Compiled and published by International Cable Directory Co.

Chicago (17e ed.) Bronvermelding

International Cable Directory Company en Western Union Telegraphy Company. International Cable Register of the World in Conjunction with Western Union Telegraphic Code. New York ; London: Compiled and published by International Cable Directory Co.

MLA (8e ed.) Bronvermelding

International Cable Directory Company en Western Union Telegraphy Company. International Cable Register of the World in Conjunction with Western Union Telegraphic Code. Compiled and published by International Cable Directory Co.