00397nam a2200133   450000500170000000800410001702000150005805000170007310000150009024500690010525000080017426000630018230000180024520260415133357.0260415b        |||||||| |||| 00| 0 eng d  a0471480533  aGB51.S8 1997  astrahler a  aphysical geographybscience and systems of the human environment  a3th  aamericablibrary congress catalouging in publicationc1997  axxii 794bhbk