000 00312nam a2200145Ia 4500
008 200208s9999 xx 000 0 und d
082 _aGL 509
245 0 _aScience at the cross roads
260 _aLondon
260 _bKnigs
260 _c1931
300 _av.p
650 _aScience-History
942 _cB
999 _c193541
_d193541