000 00436nam a22001457a 4500
003 OSt
005 20191226214756.0
008 110921t xxu||||| |||| 00| 0 eng d
020 _a9241546824
060 _aWA 675 W 2006
245 _aWHO guidelines for the safe use of wastewater, excreta and greywater :
_bpolicy and regulatory aspects.
260 _aGeneva :
_bWHO,
_c2006.
300 _axi, 100 p.
_bill.
_c25 cm.
942 _2NLM
_cWHO PUB
999 _c2082
_d2082