000 00648 a2200205 4500
100 1 _aKhan, B.
502 _gArora, D.R.
245 1 _aEffect of pack aquifer ratio, percent open area of well screen and thickness of gravel pack on the performance of tube-well.
300 _a77p.
650 _aWells
650 _aHydraulic structure
650 _aWell construction
650 _aWater supply
650 _aPump
650 _aGravel
502 _cIARI, Division of Agricultural Engineering, New Delhi
_bPh.D.
_d1973
502 _cn
_aWater supply
_aPump
_aGravel
_aIARI, Division of Agricultural
942 _2udc
_cT
901 _aT2576
999 _c141942
_d141942