000 00348cam a22001097a 4500
008 180718b1963 xxu||||| |||| 00| 0 eng d
082 _aV43 Un3
245 _aThe development of groundwater resources with special reference to deltaic areas
_cBy UNESCO
260 _aNew York
_bUNited nations
_c1963
300 _a244p.
650 _aGroundwater resources
999 _c413152
_d413152