APA (7th ed.) Citation

Marconi Communication Systems Limited.; Marconi Company. Communication & broadcasting.

Chicago Style (17th ed.) Citation

Marconi Communication Systems Limited.; Marconi Company. Communication & Broadcasting. Chelmsford, Eng.

MLA (9th ed.) Citation

Marconi Communication Systems Limited.; Marconi Company. Communication & Broadcasting.

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