000			00363cam a2200169ua 4500
001			12382
008			160225n ii |||gr||||Z||||||eng
040			_aMAIN
041			_aEnglish
082			_bKHA
100			_aKhan,T.N.
245			_aEnvironmental science
250			_a1st reprint.
260			_aDelhi: _bB.M.Publication.
300			_a428.
942			_cBK
999			_c12368 _d12368