00282nam a2200109Ia 4500008004000000082001500040100002300055245003200078260003800110300000800148650001600156210210b1977   xxu||||| |||| 00| 0 eng d  a146.3 MARO  aMARX (M) & others.  aOn dialectical materialism.  aMoscowbProgress Publishersc1977  a422  aMaterialism