000			00361nam a2200157Ia 4500
008			200202s9999 xx 000 0 und d
082			_a658.155 Cha
100			_a"Chawla, Krishan"
245		0	_aSocial cost-benefit analysis
260			_aDelhi
260			_bMittal Pub.
260			_c1987
300			_a219p.
650			_aCost effectiveness
942			_cB
999			_c33079 _d33079