APA (7th ed.) Citation

Marcham, P. (1984). Data transmission via PABXs. NCC.

Chicago Style (17th ed.) Citation

Marcham, P. Data Transmission via PABXs. Manchester: NCC, 1984.

MLA (9th ed.) Citation

Marcham, P. Data Transmission via PABXs. NCC, 1984.

Warning: These citations may not always be 100% accurate.