00277nam a2200097Ia 4500008004000000082001700040100001200057245006400069260003800133300000800171210210b1975   xxu||||| |||| 00| 0 eng d  a320.531 ENGA  aENGELS.  aAnti diihring: Herr Eugen Diihring's revolution in science.  aMoscowbProgress Publishersc1975  a493