000 00300nam a2200109Ia 4500
008 211228s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aNagel, Ernest
245 0 _aStructure of science
260 _bRoutledge and Kegan Paul
_aLondon
_c1979
942 _c1
999 _c225617
_d225617