- Author: Rupert Hacker
- Language: German
- Year: 2011
- Author: Rainer Kuhlen (editor), Dirk Lewandowski (editor), Wolfgang Semar (editor), Christa Womser-Hacker (editor)
- Language: German
- Year: 2022
- Author: Rainer Kuhlen (editor), Dirk Lewandowski (editor), Wolfgang Semar (editor), Christa Womser-Hacker (editor)
- Language: German
- Year: 2022
- Author: Jörg Hacker, Trutz Rendtorff, Patrick Cramer, et al.
- Language: German
- Year: 2009
- Author: Rupert Hacker (editor)
- Language: German
- Year: 2000
- Author: Hacker Diana, Sommers Nancy
- Language: English
- Year: 2020
A Writer's Reference
epub
- Author: Hacker Diana, Sommers Nancy
- Language: English
- Year: 2020
- Author: John Hacker-Wright
- Language: English
- Year: 2013