Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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