000			00267nam a2200109Ia 4500
008			180721s9999 xx 000 0 und d
100			_a"Varadharajan, Elangovan.S"
245		0	_aEnvironmental economics
260			_b"SPEED, Madurai"
260			_c1992
942			_cBK
999			_c121029 _d121029