000 00367nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0895202832
082 _a622.2606 B938
100 _aBULLOCK,R.L
245 0 _aRAPID EXCAVATION AND TUNNELING CONFERENCE PROCEEDINGS (SAN FRANCISCO) VOL.I
260 _aNEW YORK
_bSME
_c1981
300 _a24X16
942 _cBK
_2DDC
999 _c25432
_d25432