00536nam a2200181Ia 4500003000900000008004100009040001600050080001200066100003100078245005200109250001200161260004000173300001600213650001800229942000700247999001300254952008700267IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a52bDUN  aDuncan, John Charles91254 0aAstronomyba text bookcJohn Charles Duncan      a4th ed.  aNew YorkbHarper and Brothersc1946  axiii, 500p.  aAstronomy980  cBK  c558d558  00104070aBANbKODcGENd0000-00-00l0o52/ DUNp577r2021-11-05w0000-00-00yBK