00389nam a2200109Ia 450000500170000000800410001702000150005805000160007324501190008926000320020865000390024020251229184420.0251229s9999    xx            000 0 und d  a0521363578  aGF 75 .E22  4aThe earth as transformed by regional human actionbglobal and regional changes in the past 300 years by B.L Turner  aCambridgebCambridge c1990  aMan-Influence On Nature-Congresses