7
by Trockij, Lev, 1879-1940
Published 1974
Book
10
by Leonhard, Wolfgang, 1921-2014
Published 1976
Book
12
by Peter, Manfred.
Published 2001
Book
18
by Onasch, Konrad, 1916-2007
Published 1961
Book
20
by Kohn, Hans, 1891-1971
Published 1961
Book