000 00289nam a2200121Ia 4500
008 160710s1956 xx 000 0 und d
082 _a520 GAP
100 _aGAPOSCHKIN,P
245 _aINTRODUCTION TO ASTRONOMY
260 _bEYRE & SPOTTISWOODE
_c1956
300 _a508
942 _2ddc
_cSF
999 _c77901
_d77901