1
by Healy, John
Published 1890
Book
2
Book
3
by Leipold, Eugen
Published 1912
Book
4
by Prüfer, Johannes 1882-1947
Published 1914
Book
5
by Prüfer, Johannes 1882-1947
Published 1920
Book
6
by Müller, Helmut
Published 1926
Book
7
Published 1927
Book