00318nam a2200121Ia 4500003000400000008004100004020001500045040000800060100001600068245007500084260002800159300000900187LDD181029s9999    xx            000 0 und d  a8190004670  cLDD  aMURTY, M.N. 0aEconomic evaluation of environmental management programmescM.N. MURTY  aNew DelhibCommonwealth  a1988