Das verschlossene Buch (The unlocked book)
Subtitle: Roman
By: (Trans. by M.H. von Hassenfels).
Contributors: Hassenfels, Maria Hummel von.
Series: Die versiegelten Bücher
Publisher: Amonesta Verlag
Published: 1930
Place of publication: Leipzig, (etc.)
Language: ger
Number of pages: 300