BOWERMAN,L.D
RAPID EXCAVATION AND TUNNELING CONFERENCE PROCEEDINGS(MASSACHUSETTS) - LITTLETON SMME 1993 - 24X16
0-87335-127-4
622.2606 B786
RAPID EXCAVATION AND TUNNELING CONFERENCE PROCEEDINGS(MASSACHUSETTS) - LITTLETON SMME 1993 - 24X16
0-87335-127-4
622.2606 B786