000 00285nam a2200109Ia 4500
008 170707s9999 xx 000 0 und d
050 _a940.1 D155
100 _a"Dales, Richard C."
245 4 _aThe scientific achievement of the middle ages
260 _c1973
942 _2lcc
_cBK
_kCirc.
999 _c16816
_d16816