00423nam a2200145Ia 4500003000900000008004100009020001800050040001600068080001200084100001300096245008500109260004800194300001000242650002500252IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-34511-1  cIIA Library  a52bMOO  aMoore, P 0aAmateur AstronomercP. Moore                                                      aCambridgebCambridge University Pressc1990  a337p.  aastronomy, astronomy