000 00493nam a2200145Ia 4500
008 190327s9999||||xx |||||||||||||| ||und||
040 _aNITIL
_cNITIL
082 _221st
_a628.114
_bC397S
110 _aCentralGround Water Board (New Delhi)
245 0 _aSeminar on advances in water well drilling techniques and equipments January 8-9, 1999
260 _aNew Delhi
_bCGWP
_c1999
300 _a304p.
650 _aBoring; Wells; Water; Hydraulic engineering; Under water drilling
942 _cBKS
999 _c50360
_d50360