000			00323nam a2200121Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aSivalakshmi G V
245		0	_aMethods Of Teaching Environmental Science
260			_b"Discovery Publishing House, Delhi"
300			_a331
650			_aChemistry-Chemistry
942			_cBK
999			_c3269 _d3269