000 00574nam a22001457a 4500
008 230613b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aR 628(082.2)"1981-1991"
_bM0
245 _aWorkshop on Research & development needs water supply and sanitation decade (1981-1990)
_c/ National Development Engineering Research Institute
260 _aNagpur:
_bNational Development Engineering Research Institute,
_c1980
300 _a60p.
650 _aLanguage
653 _aWater
942 _2udc
_cPR
999 _c42890
_d42890