APA (7th ed.) Citation

Brewster, R. L. (1989). Communication systems and computer networks. Horwood u.a.

Chicago Style (17th ed.) Citation

Brewster, Ronald L. Communication Systems and Computer Networks. Chichester u.a: Horwood u.a, 1989.

MLA (9th ed.) Citation

Brewster, Ronald L. Communication Systems and Computer Networks. Horwood u.a, 1989.