00284nam a2200133Ia 4500020001800000082001000018100002000028245004600048250000600094260002700100300000800127500000900135650000600144  a0 7181 2353 0  a574.5  aHillary, Edmund 0aEcology 2000 : The Changing Face Of Earth  a-  aLondonbMichael Joseph  a252  a2901  a-