000 00353nam a22001457a 4500
999 _c66750
_d66750
008 191031b ||||| |||| 00| 0 eng d
100 _aOldham, E.L.
245 _aDriling 's Handbook
250 _aEd-5th.
260 _aOhio.
_bCleven rock drilling
_cc1945.
300 _a160p.
600 _acivil engineering
650 _adrilling
942 _cREF