00549cam a22002051  45000010008000000030008000080050017000160080041000330100017000740400030000910820013001212450041001342600049001753000033002245000020002576500015002777000021002929420013003139990017003261222143BD-DhUL20160110120212.0730102s1960    maua          000 0 eng    a   60013294   aBD-DhULcBD-DhULdBD-DhUL00a520bSHS10aSource book in astronomy 1900-1950 /  aCambridge:bHarvard University Press,c1960.  axv, 423 p. :bill. ,c23 cm.  aIncludes index. 0aAstronomy.  aShapley, Harlow.  2ddccREF  c44551d44551