4
by Schirren, Carl, 1826-1910.
Published 1912
Book
5
by Stern, Alfred, 1846-1936.
Published 1914
Book
6
by Wilson, Woodrow, 1856-1924.
Published 1918
Book
7
Published 1922
Book
10
Published 1938
Book
11
Book
12
by Planck, Max, 1858-1947.
Published 1943
Book