APA (7th ed.) Citation

Croucher, P. (1989). Communication and network: A handbook for the first time user. Sigma Press.

Chicago Style (17th ed.) Citation

Croucher, Phil. Communication and Network: A Handbook for the First Time User. Wilmslow, United kingdom: Sigma Press, 1989.

MLA (9th ed.) Citation

Croucher, Phil. Communication and Network: A Handbook for the First Time User. Sigma Press, 1989.