00529nam a2200193Ia 450000500170000000800410001704000190005804100120007708200150008910000220010424500490012625000120017526000320018730000380021950400190025765000350027665100140031185000100032520230803134814.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a551.3bPIR  aPirsson , Louis V  aRocks  and rock mineralscby louis V Pirsson  a3rd ed.  aNewYorkbJohn Willey c1949  avii ,349pb plate ill. 72 figures  aIncludes index  aGeology,Hydrology, Meteorology  aPetrology  aLCLIB