000 00293nam a2200121Ia 4500
008 160710s1963 xx 000 0 und d
082 _a621.19 PEQ
100 _aPEQUIGNOT,C.A.
245 _aTUNNELS AND TUNNELLING
260 _bSCIENTIFIC & TECHNICAL
_c1963
300 _a555
942 _2ddc
_cB
999 _c28516
_d28516