6
by Nachmansohn, Max
Zürich Leipzig Stuttgart : Rascher, 1933
Book
7
by Pelman, Carl
3. durchges. Aufl - Bonn : Cohen, 1912
Book
11
by Mayr, Georg
München : Winkler, 1954
Book
12
by Mayr, Georg
München : Winkler, 1954
Book