000 00289nam a2200121Ia 4500
005 20250612122149.0
008 250601s1997 xx 000 0 eng d
100 _aH d kumar
245 0 _aModern concepts of ecology
260 _aNew delhi
_bAnmol pun
_c1997
300 _a478
942 _2ddc
_cBK
999 _c429
_d429