000 00320nam a2200133Ia 4500
008 210901s1970 xx 000 0 eng d
082 _a509 BER
100 _aBernal, J.D.
245 0 _aScience in history
260 _aLondon
_bPenguin Books
_c1970
300 _a995, xxv
650 _aScience--History
942 _2ddc
_cBK
999 _c5597
_d5597