Karl Marx : man and fighter / Boris Nicolaievsky and Otto Maenchen-Helfeen. Translated by Gwenda David and Eric Mosbacher. Nikolaevskii, Boris Ivanovich 1887- Maenchen-Helfen, Otto, joint author. Marx, Karl, 1818-1883. 923.343 NIK London : Methuen; 1936. 1936. 1936 Text ix, 391 p. : eng engger