000 00276nam a2200109Ia 4500
008 170912s9999 xx 000 0 und d
082 _a580 NEG/E
100 _aNEGI S S
245 0 _aENVIRONMENTAL CONSERVATION
260 _bBISHEN SINGH MAHENDRA PAL SINGH
_c1991
942 _cTB
999 _c33136
_d33136