000 002860000a22001090004500
008 151216t1978 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a626/627
_bU6
942 _cBK
245 _aWater development and management : proceedings of ...
260 _aOxford
_bPergamon
_c1978
999 _c138456
_d138456