Treason in the twentieth century / Margret Boveri ; translated by Jonathan Steinberg. Boveri, Margret Steinberg, Jonathan. History, Modern 20th century. Treason. 364.13 19 BOT Index : p.403-408. Bibliography : p.399-402. London : Macdonald, 1961. 1961. 1961 Text ix, 408 p. ; eng