Rapid Excavation and Tunneling Conference, ebrary, Inc, DiPonio, M. A., & Dixon, C. (2013). Rapid Excavation and Tunneling Conference 2013 proceedings. Society for Mining Metallurgy and Exploration.
Chicago-referens (17:e uppl.)Rapid Excavation and Tunneling Conference, Inc ebrary, Michael A. DiPonio, och Chris Dixon. Rapid Excavation and Tunneling Conference 2013 Proceedings. Englewood: Society for Mining Metallurgy and Exploration, 2013.
MLA-referens (9:e uppl.)Rapid Excavation and Tunneling Conference, et al. Rapid Excavation and Tunneling Conference 2013 Proceedings. Society for Mining Metallurgy and Exploration, 2013.
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