000 00461nam a22001577a 4500
005 20230908111115.0
008 221227b |||||||| |||| 00| 0 eng d
020 _a9789993686545
082 _aA5.4 NEC
110 _aNational Environment Commission
245 _aBhutan drinking water quality standard 2016 /
260 _aThimphu :
_bNational Environment Commission,
_c2016.
300 _a23 p. :
_c20 cm.
650 _aWater quality
942 _2ddc
_cGOVT DOC
999 _c10413
_d10413