APA (7e ed.) Bronvermelding

Beer, G. (2010). Technology innovation in underground construction (1a. ed.). CRC Press.

Chicago (17e ed.) Bronvermelding

Beer, Gernot. Technology Innovation in Underground Construction. 1a. ed. Boca Ratón: CRC Press, 2010.

MLA (9e ed.) Bronvermelding

Beer, Gernot. Technology Innovation in Underground Construction. 1a. ed. CRC Press, 2010.