Cita APA (7th ed.)

West, G., & Ewan, V. J. (1981). Site investigation and construction of the Dinorwic diversion tunnel. Transport and Road Research Laboratory.

Cita Chicago (17th ed.)

West, G., i V. J. Ewan. Site Investigation and Construction of the Dinorwic Diversion Tunnel. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.

Cita MLA (9th ed.)

West, G., i V. J. Ewan. Site Investigation and Construction of the Dinorwic Diversion Tunnel. Transport and Road Research Laboratory, 1981.