00395nam a22001337a 450000500170000000800410001704100080005808200160006610000230008224500860010525000160019126000450020765000090025220220312145759.0220312b        xxu||||| |||| 00| 0 eng d  aeng  a363.728bRS  aRay, Subrata KUMAR  aSolid waste management in west bengal ; economic analysis/cSubrata Kumar Ray .--  a1st ed. .--  aNew Delhi :bN.B. Publications ,c2021 .  aENVI