000 00327nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-203-3894-4
082 _a577
_bRAN
100 _aRana, S. V. S
245 0 _aEssentials of Ecology and Environmentals Science 4th ed
260 _aVidhyanagar
_bPHI
_c2009
365 _a295
999 _c256921
_d256921