000			00369nam a2200157Ia 4500
008			240411s9999||||xx |||||||||||||| ||und||
020			_cRs. 515.00
040			_aSCA
082			_a22nd. ed.
100			_aShashi Chawla
245		2	_aA Textbook of Environmental Studies
250			_a1st. ed.
260			_aChennai _bMGH _c2013
300			_axiii;1.8p.
942			_cBK
999			_c50387 _d50387