000 004570000a22002170004500
869 _a1991
_v6
_n4
869 _a1996
_v11
_n1-5
869 _a1997
_v12
_n2-5
869 _a1998
_v13
_n2-4
869 _a1999
_v14
_n5,6
869 _a2000
_v15
_n1-3,5
869 _a2001
_v16
_n1-3
869 _a2002
_v17
_n1-4
222 _aWater & Wastewater International
022 _a0891-5385
505 _a
500 _a
260 _b
260 _a
852 _aADZ
999 _c64470
_d64470