Proceedings - 1991 Rapid Excavation and Tunneling Conference, [1991 RETC], Seattle, Washington, June 16 - 20, 1991

Rapid Excavation and Tunneling Conference / American Institute of Mining, Metallurgical, and Petroleum Engineers | TIBKAT | 1991

Proceedings - 1993 Rapid Excavation and Tunneling Conference, [1993 RETC], Boston, Massachusetts, June 13-17, 1993

American Institute of Mining, Metallurgical, and Petroleum Engineers | TIBKAT | 1993

Proceedings - 1976 Rapid Excavation and Tunneling Conference, [1976 RETC], Las Vegas, Nevada, June 14 - 17, 1976

Rapid Excavation and Tunneling Conference / American Society of Civil Engineers | TIBKAT | 1976

Proceedings // 1974 Rapid Excavation and Tunneling Conference, [1974 RETC], San Francisco, California, June 24 - 27, 1974 / ed.: Harry C. Pattison ... Sponsored by American Society of Civil Engineers ... ; Vol. 2

Rapid Excavation and Tunneling Conference / American Society of Civil Engineers | TIBKAT | 1974

Proceedings // 1974 Rapid Excavation and Tunneling Conference, [1974 RETC], San Francisco, California, June 24 - 27, 1974 / ed.: Harry C. Pattison ... Sponsored by American Society of Civil Engineers ... ; Vol. 1

Rapid Excavation and Tunneling Conference / American Society of Civil Engineers | UB Braunschweig | 1974