000 00520nam a2200133Ia 4500
008 160316s1998 xxu||||| |||| 00| 0 eng d
020 _a8170248868
100 _aChitkara, M.G.
245 _aEncyclopaedia of Ecology, Environment and Pollution: Science, Technology and Environment (Vol. VI)
_b/ Chitkara, M.G.
260 _aNew Delhi
_bAPH Publishing Corporation
_c1998
300 _a155p
650 _aSUSTAINABLE DEVELOPMENT
650 _aENVIRONMENTAL TECHNOLOGY
650 _aSCIENCE AND TECHNOLOGY
999 _c15737
_d15737