TY - BOOK AU - Raj,Gurdeep,(ed) TI - Environmental management of fresh water ecology T2 - Encyclopaedia of environmental science SN - 8171582575 : U1 - 570.52632 19 PY - 1992/// CY - New Delhi PB - Akashdeep Publishing House KW - Fresh water KW - Spines KW - Water KW - Ecology KW - Environment management N1 - env N2 - Environment Management ER -