TY - GEN T1 - Drilling and excavation technologies for the future DA - 1994. CY - Washington, D.C. : CN - TN281 PB - National Academy Press, PP - Washington, D.C. : PY - 1994. ID - 419890 KW - Boring KW - Boring KW - Excavation KW - Excavation TI - Drilling and excavation technologies for the future LK - https://univsouthin.idm.oclc.org/login?url=http://site.ebrary.com/lib/usiricelib/Doc?id=10056975 UR - https://univsouthin.idm.oclc.org/login?url=http://site.ebrary.com/lib/usiricelib/Doc?id=10056975 ER -