000 00366nam a2200169Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a627.75
245 0 _aWell drilling manual
260 _aNULL
260 _bThe National Water Well Association.
260 _c1985
300 _a71p.
365 _b100
650 _aCIVIL
942 _cDBK
999 _c18021
_d18021