TY - BOOK AU - Dowding,C.H. ED - United States. ED - Federal Highway Administration, Offices of Research & Development, ED - Massachusetts Institute of Technology TI - Feasibility of horizontal boring for site investigation in soil U1 - 624.152 23 PY - 1976/// CY - Washington, D.C. PB - Federal Highway Administration, Offices of Research & Development KW - Boring KW - Excavation KW - Tunneling N1 - Final report; Includes bibliographical references ER -