00506nam a2200193Ia 450000500170000000800410001704000190005804100120007708200150008910000270010424500570013125000120018826000380020030000190023850400190025765000120027665100140028885000100030220220729144032.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a551.4bWOR  aWorcester,  Philip G.  2aA Text book of geomorphologycby Philip G. Worcester  a2nd ed.  aPrincetonbD. Van Nostrand c1948  a584p.b plates  aIncludes index  aGeology  aHydrology  aLCLIB