00480nam a2200205Ia 4500003000400000005001700004008004100021020001500062040000700077041000800084082001900092100001700111245002800128250000600156260004000162300001500202365001200217650001400229650003100243OSt20230406101834.0210423s2007    xx            000 0 und d  a8180522253  cAL  aeng  a333.7 SANS223  aSANKARAN (S)  aEnvironmental economics  a3  aChennaibMargham Publicationsc2007  aix,471bPB  b90cINR  aEconomics  aNatural Resources & Energy