Cita APA (7a ed.)

British Tunnelling Society & Institution of Civil Engineers (Great Britain). (2010). Specification for tunnelling (3rd ed.). Thomas Telford.

Cita Chicago Style (17a ed.)

British Tunnelling Society y Institution of Civil Engineers (Great Britain). Specification for Tunnelling. 3rd ed. London: Thomas Telford, 2010.

Cita MLA (9a ed.)

British Tunnelling Society y Institution of Civil Engineers (Great Britain). Specification for Tunnelling. 3rd ed. Thomas Telford, 2010.