000			00311nam a22001337a 4500
020			_aNA
082			_222 _a577
100			_aRana, S. V. S.
245			_aEssentials of ecology and enivronmental science /
250			_a2nd ed.
260			_bPrentice Hall, _cc2005.
300			_a0 _bill.
942			_2ddc _cCIVIL _03
999			_c4281 _d4281