00626nam a2200193Ia 4500003000900000008004100009040001600050080001200066100003300078245006600111250001200177260004400189300001400233650001800247700003200265942000700297999001500304952011300319IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a52bBAK  aBaker, Robert Horace96739 3aAn Introduction to astronomycR. H. Baker and L. W. Frederick  a7th ed.  aPrinceton, N. J.bD. Van Nostrandc1968  aix, 365p.  aAstronomy980  aFrederick, Lawrence W96740  cBK  c3796d3796  00104070aBANbBANcGENd1971-07-24g50.63l0o52/ BAKp4238r2021-11-05v50.63w1971-07-24yBKGRs. 50.63