00442nam a2200145Ia 4500003000600000005001700006008004100023040002500064082001900089100002500108245007400133260004400207300002700251500001800278NORSU20240422083146.0240215s9999    xx            000 0 und d  aNORSU-DumcNORSU-Dum  a552.1 W12 1950  aWahlstrom, Ernest E. 0aIntroduction to Theoretical Igneous PetrologycBy Ernest E. Wahlstrom  bJohn Wiley & Sons, Inc.c1950aNew York  avii, 365 pages, 22 cm.  ainclude index