00325nam a22001097a 450000500170000000800410001704100080005810000170006624500770008326000430016065000120020320261003232608.0250211b        |||||||| |||| 00| 0 eng d  aeng  aFedern, Karl  aThe materialist conception of history a critical analysis /cKarl Federn  aLondon :bMacmillan and Co Ltd.c1939.  aHistory