000 00352nam a2200157Ia 4500
008 200208s9999 xx 000 0 und d
082 _aGL 500 BER
100 _a"Bernal, J. D."
245 0 _aScience in history
260 _aLondon
260 _bGeorge Routledge
260 _c1954
300 _a967p.
650 _aScience social
942 _cB
999 _c193475
_d193475