APA (7th ed.) Citation

Cowles, R. (1989). The making of the Severn Railway Tunnel. Sutton.

Chicago Style (17th ed.) Citation

Cowles, Roger. The Making of the Severn Railway Tunnel. Gloucester,UK: Sutton, 1989.

MLA (8th ed.) Citation

Cowles, Roger. The Making of the Severn Railway Tunnel. Sutton, 1989.

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