000 00655 a2200265 4500
001 46743
020 _a0-444-01130-72
041 _aeng
080 _a624.193 Tun:85
245 _aTunneling and underground transport : future developments in technology, economics and policy : conference, Boston, Massachusetts, Apr. 24-25, 1985 / edited by Frank P. Davidson
250 _a
260 _aNew York
260 _bElsevier,
260 _c1987
300 _ax,236 p.
300 _c22 cm
490 _a
100 _a
700 _a
650 _a
650 _aTunneling-Congresses
650 _aTunnels-Congresses
942 _cBK
942 _2UDC
999 _c57286
_d57286