000 00482nam a22001697a 4500
005 20170822174814.0
008 130429b xxu||||| |||| 00| 0 eng d
020 _a9241542489
040 _aBSU
082 _222
_a639.8 MAR
100 _aMara,Duncan
_98869
245 _aGuidelines for the safe use of wastewater & excreta in agriculture & aquaculture
260 _aGeneva
_bWorld Health Organization
_c1989
300 _avii;187p
_c24cm
658 _aAgriculture
942 _2ddc
_cBK
999 _c4239
_d4239