00506nam a2200157Ia 4500008004100000022001800041040002500059082001700084100002000101245003900121260004200160942000700202942000700209952011500216999001700331240215s9999    xx            000 0 und d  a0-07-228249-5  aNORSU-DumcNORSU-Dum  a520/Ar6/2000  aArny, Thomas T. 0aExplorations an Intro to Astronomy  bThe McGraw-Hill Companies, Inc.c2000  cBK  yBK  00104070aNORSU-DumbNORSU-DumcCIRCULATION SECTIONd2024-02-15l0o520/Ar6/2000r2024-02-15w2024-02-15yBK  c19347d19347