000 00392 a2200145 4500
020 _a8170248957
082 _a577.2703
_bCHI
090 _c16584
_d25102
100 _aChitkara, M.G.
245 _aEncyclopaedia of ecology,environment and pollution
_ba compendium of environment teams
260 _aNew Delhi
_bAPH
_c1998
_g1998
300 _axii,235p.
_c25cm
650 _aEcology
942 _cPR
999 _c44568
_d44568