000 00447nam a2200169Ia 4500
008 211115s9999 xx 000 0 und d
020 _a0-674-82200-5
041 _aeng
082 _aB9:6
_bL9
100 _aLang, Kenneth R..
245 2 _aA source book in astronomy and astrophycs,1900-1975 /
250 _a1st.Edn. /
260 _aCambridge :
_bHarvard University Press.
300 _axx,922p :
650 _aMathematics
942 _cTB
999 _c35163
_d35163