000 00353nam a2200133Ia 4500
008 220107s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aNagel, Ernest
245 0 _aStructure of science
250 _a1
260 _bRoutledge and Kegan Paul
_aLondon
_c1974
653 _aScience - Research
942 _c1
999 _c160776
_d160776