00423nam a22001457i 4500001001000000005001700010008004100027082002000068100002300088245005000111260003700161300001700198650004400215020001800259SXC02900220260819093837.0260101s2006    ii            000 0 eng d  a333.7 KOL-E222  aKolstad, Charles D10aEnvironmental economics /cKolstad, Charles D  abOxford University Press,c2006  ap. ;c22 cm. 0aEnvironmental economics; Land economics  a9783897001824