000 00350nam a2200145Ia 4500
008 131111s9999 xx 000 0 und d
100 _aSingh,L R
245 _aEnvironmental management
260 _aAllahabad
260 _bAllahabad geographers society
260 _c1983
300 _a400p.
650 _aEnvironment
_aGeography
763 _a9500
999 _c44930
_d44930