00299nam a2200109 a 450000500170000008200160001710000150003324500840004825000120013226000270014430000180017120251203090458.0  a146.3,blen  aLenin, VI.  aMaterialism and empiro-criticism: critical comments on a reactionary philosophy  a2nd ed.  aMoscow: Progressc1964  a382p.c21 cm.