00513     2200205   4500001002100000008003900021035002000060245002200080100001700102260005200119300002000171020001800191084001700209082001100226650001400237990001400251990001400265990001400279990001400293INLIS000000000000839                                   N    a0010-0317000837  aAquatic Ecosystem  aKumar, Ashok  aNew Delhi :bDiscovery Publishing Pvt.Ltdc2012  a204 hlm.c26 cm  a9789350560679  a577.71 Kum a  a577.71  aECOSYSTEM  a178114212  a145514212  a178114212  a145514212