00642nam a2200193Ia 4500008004100000020001300041082001500054100002200069245004800091250000800139260003400147300002700181500001900208600003300227650003400260942000700294952013200301999001500433240925s9999    xx            000 0 und d  a72282495  a520.21 ARN  aArny   ,Thomas T. 0aExplorations: an introduction to astronomy   a2nd  aBoston:bMC Graw-Hillc,2000.  axv,164p.bNAfOriginal  aIncludes Index  aHumanities & Natural Science  aAstronomy and allied sciences  cBK  001040708HUMaUITUbUITUd2002-05-18eRoyal Book Companyg3925.80l0o520.21 ARNpQ4281r2024-09-25 07:13:27w2024-09-25yBK  c6780d6780