Cita APA (7a ed.)
North American Tunneling Conference Portland, Or., ebrary, Inc, & Eckert, L. R. (2010). North American Tunneling 2010 proceedings. Society for Mining, Metallurgy, and Exploration, Inc..
Cita Chicago Style (17a ed.)
North American Tunneling Conference Portland, Or., Inc ebrary, y Lawrence R. Eckert. North American Tunneling 2010 Proceedings. Littleton, Colo.: Society for Mining, Metallurgy, and Exploration, Inc., 2010.
Cita MLA (9a ed.)
North American Tunneling Conference Portland, Or., et al. North American Tunneling 2010 Proceedings. Society for Mining, Metallurgy, and Exploration, Inc., 2010.
Precaución: Estas citas no son 100% exactas.