Cita APA (7th ed.)
Megaw, T., & Bartlett, J. (1981). Tunnels: Planning, Design, Construction. Ellis Horwood.
Cita Chicago (17th ed.)
Megaw, T.M, i J.V Bartlett. Tunnels: Planning, Design, Construction. Chichester, Inglaterra: Ellis Horwood, 1981.
Cita MLA (9th ed.)
Megaw, T.M, i J.V Bartlett. Tunnels: Planning, Design, Construction. Ellis Horwood, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.