000 00385nam a22001337a 4500
020 _a9789241546829
050 _aMEDREF S657
_b.W486
245 _aWho guidelines for the safe use of wastewater, excreta and greywater
250 _a3rd ed.
260 _aSwitzerland
_bWorld health organization
_c2006
300 _axi, 100p
_bill
650 _apolice and regulatory aspects
942 _cBK
999 _c16565
_d16565