TY - BOOK ID - 137981925 TI - Protecting public safety through excavation damage prevention PY - 1997 PB - Washington, D.C. : [Springfield, Va.]: National Transportation Safety Board ; [Available through the National Technical Information Service], DB - UniCat KW - Underground pipelines KW - Excavation KW - Accidents KW - Safety measures. UR - https://www.unicat.be/uniCat?func=search&query=sysid:137981925 AB - ER -