APA (7th ed.) Citation

Garbutt, P. E. (1979). The London underground. London Transport.

Chicago Style (17th ed.) Citation

Garbutt, Paul E. The London Underground. London: London Transport, 1979.

MLA (9th ed.) Citation

Garbutt, Paul E. The London Underground. London Transport, 1979.

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