000 00277nam a2200109Ia 4500
008 160710s1963 xx 000 0 und d
100 _aPERGUINOT,C.A.
245 _aTUNNELS AND TUNNELLING
260 _bHUTCHINSON SCIENTIFIC & TECHNICAL
_c1963
300 _a555
942 _2ddc
_cB
999 _c30473
_d30473