00451nam a2200157Ia 4500008004100000020001400041082001200055100002100067245004600088250000700134260004100141300002500182500001900207600003300226650003400259240925s9999    xx            000 0 und d  a471509965  a520 ZEI  aMichael , Zeilik 0aConceptual Astronomy: a journey of ideals  aNA  aNew York:bJohn Wiley & Sonsc,1993.  a412p.bNAfPhotocopy  aIncludes Index  aHumanities & Natural Science  aAstronomy and allied sciences