APA (7th ed.) Citation

Great Britain. Ministry of Posts and Telecommunications & National Computing Centre Limited. (1975). Handbook of data communications. NCC Publications.

Chicago Style (17th ed.) Citation

Great Britain. Ministry of Posts and Telecommunications and National Computing Centre Limited. Handbook of Data Communications. Manchester: NCC Publications, 1975.

MLA (9th ed.) Citation

Great Britain. Ministry of Posts and Telecommunications and National Computing Centre Limited. Handbook of Data Communications. NCC Publications, 1975.