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. Sutton, 1989.

MLA (9th ed.) Citation

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

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