1
by Bebel, August
published 1950
Book
2
by Kalinin, Michail Ivanovič
published 1950
Book
3
4
by Homerus
published 1936
Book
5
by Freiberger, Heinrich
published 1934
Book Thesis
6
by Forchhammer, Georg
published 1930
Book
7
by Stahl, Ernst
published 1912
Book