00457nam a2200157Ia 450000100060000000800410000602000180004704000130006508200190007810000290009724500820012626000500020830000110025854600070026965000230027619541140408s9999    xx            000 0 und d  a0-13-010845-6  cPK-LaUMT  a 910.02bCHR-G  aRobert W. Christopherson  aGeosystems:bAn introduction to physical geography.cRobert W. Christopherson  aUpper Saddle River,USA:bPrentice Hall,c1994  a626 p.  aEN  aPhysical geography