Title: ı   ơ ʻ  .   ʻ   ð  ʻ,  Þ  .  Ư ư đ æ     ʻ  ı  þ  .  ð  Þ.       đ æ  ı  þ  .
Subjects: Correspondence, Communists
People: Karl Marx (1818-1883), Friedrich Engels (1820-1895), Friedrich A. Sorge (1828-1906)