000 00341nam a2200145Ia 4500
008 131111s9999 xx 000 0 und d
100 _aTripathi,A K
245 _aAdvances in environmental sciences
260 _aNew Delhi
260 _bAshish
260 _c1993
300 _a387p.
650 _aEnvironment
_aGeography
763 _a16613
999 _c49942
_d49942