000 00462nam a2200193Ia 4500
008 200208s9999 xx 000 0 und d
020 _a9781615300259
082 _aR 520 AST
100 _a"Gregersen, Erik (ed.)"
245 0 _aAstronomical observations
260 _aNew York
260 _bBritannica Educational pub.
260 _c2010
300 _a214 p.
365 _b9000
365 _dRS
650 _aAstronomy - Popular works
942 _cB
999 _c229476
_d229476