Proceedings // 1979 Rapid Excavation and Tunneling Conference, [1979 RETC], Atlanta, Georgia, June 18 - 21, 1979 / ed.: Alfred C. Maevis ... Sponsored by American Society of Civil Engineers ... ; Vol. 2

Rapid Excavation and Tunneling Conference / American Society of Civil Engineers | TIBKAT | 1979

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

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 - 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 - 1989 Rapid Excavation and Tunneling Conference, [1989 RETC], Los Angeles, California, June 11 - 14, 1989

Rapid Excavation and Tunneling Conference / American Institute of Mining, Metallurgical, and Petroleum Engineers | TIBKAT | 1989