Cita APA (7a ed.)

Cockx, A. (1966). Telecode and telex address book: Telecode in 10 lenguages and internatonal telex address book for libraries and documentation centres. Unesco,IFLA.

Cita Chicago Style (17a ed.)

Cockx, A. Telecode and Telex Address Book: Telecode in 10 Lenguages and Internatonal Telex Address Book for Libraries and Documentation Centres. London: Unesco,IFLA, 1966.

Cita MLA (8a ed.)

Cockx, A. Telecode and Telex Address Book: Telecode in 10 Lenguages and Internatonal Telex Address Book for Libraries and Documentation Centres. Unesco,IFLA, 1966.