00519nam a2200181Ia 4500003000900000008004100009020001800050040001600068080001200084100001500096245011100111250001200222260004000234300001700274650001400291650001700305700001500322IN-BaIIA211028s9999    xx            000 0 eng d  a0-7503-0917-2  cIIA Library  a52bROY  aRoy, A. E. 0aAstronomybprinciples and practicecA. E. Roy and D. Clarke                                                 a4th ed.  aBristolbInstitute of Physicsc2003  axxiii, 475p.  aAstronomy  aAstrophysics  aClarke, D.