00503nam a2200181Ia 4500008004100000040001900041041001200060082002400072100002600096245005400122250001200176260003100188300003300219504001900252650001200271651001800283850002000301131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a551.4/THObLCBKB/97  aThornbury , William D  aPrinciples of geomorphologycWilliam D. Thornbury  a2nd ed.  aNew YorkbJohn Wileyc1954  a618p.b ill. figuresc 20cm.  aIncludes index  aGeology  aGeomorphology  aLCBKB/551.4/THO