TY - BOOK AU - Lawrence,Colin A. AU - Del Vescovo,Anthony TI - Rapid excavation and tunneling conference 2017 proceedings AV - TA805 .R375 2017 U1 - 624.193 23 PY - 2017/// CY - Englewood, Colorado PB - Society for Mining Metallurgy and Exploration KW - Tunneling KW - Electronic books N1 - Includes index UR - https://ebookcentral.proquest.com/lib/bacm-ebooks/detail.action?docID=4867498 ER -