International Labour Office
Peretiatkowicz, Antoni
Bernhard, Ludwig (1875-1935)
Siwiński, Waldemar (1952- ). Oprac.
Boghitschewitsch, Miloš (1876-1937)
Boghitschewitsch, Miloš (1876-1937)
Droysen, Johann Gustav (1808-1884)
Klaczko, Julian (1825-1906)
Spengler, Oswald