000 00335nam a22001457a 4500
020 _a90-70260-69-7
041 _aENG
100 _aBoonstra.J
245 _aNumerical Modelling of Groundwater Basins
260 _aNetherlands
_bILRI Publication
_c1981
300 _a225
650 _aIDE
700 _aRidder.N.A
856 _uIDE ( 05 )
999 _c1551
_d1551