APA-referens (7:e uppl.)
Rapid Excavation and Tunneling Conference San Francisco, Calif, ebrary, Inc, Redmond, S., & Romero, V. (2011). 2011 rapid excavation and tunneling conference: Proceedings. Society for Mining, Metallurgy, and Exploration, Inc..
Chicago-referens (17:e uppl.)
Rapid Excavation and Tunneling Conference San Francisco, Calif, Inc ebrary, Steve Redmond, och Victor Romero. 2011 Rapid Excavation and Tunneling Conference: Proceedings. Englewood, Colo.: Society for Mining, Metallurgy, and Exploration, Inc., 2011.
MLA-referens (9:e uppl.)
Rapid Excavation and Tunneling Conference San Francisco, Calif, et al. 2011 Rapid Excavation and Tunneling Conference: Proceedings. Society for Mining, Metallurgy, and Exploration, Inc., 2011.
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