000 00446nam a2200181Ia 4500
008 180424s9999 xx 000 0 und d
020 _a715354671
084 _a520 B9
100 _a"Beet, E A"
245 0 _aMathematical Astronomy for Amateurs
250 _a\\197200ENGGPSX
260 _aDavid and Charles
260 _b1972
260 _cNewton Abbot
300 _aviii+143p
500 _aincludes index and biblioraphy
942 _cBK
999 _c40400
_d40400