Gaya APA
Beer, Gernot. (2010).
Technology Innovation in Underground Construction .
London:
CRC Press.
Gaya Chicago
Beer, Gernot.
Technology Innovation in Underground Construction.
London:
CRC Press,
2010.
Text.
Gaya MLA
Beer, Gernot.
Technology Innovation in Underground Construction.
London:
CRC Press,
2010.
Text.
Gaya Turabian
Beer, Gernot.
Technology Innovation in Underground Construction.
London:
CRC Press,
2010.
Print.