- Author: H. Zapf (editor), E. Siegert (editor)
- Language: German
- Year: 1925
- Author: R. H. Zapf (editor), E. Siegert (editor)
- Language: German
- Year: 1931
- Author: Walther Arndt (editor), Helmuth Klingemann (editor), Heinrich Zapf (editor), Erich Siegert (editor)
- Language: German
- Year: 1959
- Author: Hubert Zapf (editor)
- Language: English
- Year: 2016
- Author: Hubert Zapf (editor)
- Language: English
- Year: 2016
- Author: Johanna Hartmann (editor), Christine Marks (editor), Hubert Zapf (editor)
- Language: English
- Year: 2016
- Author: Sebnem Toplu (editor) Hubert Zapf (editor)
- Language: English
- Year: 2010
