- Author: Dieter Blume, Mechthild Haffner, Wolfgang Metzger, Katharina Glanz
- Language: German
- Year: 2016
- Author: Dieter Blume, Mechthild Haffner, Wolfgang Metzger, Katharina Glanz
- Language: German
- Year: 2016
- Author: Dieter Blume, Mechthild Haffner, Wolfgang Metzger
- Language: German
- Year: 2012
- Author: Wolfgang Metzger
- Language: German
- Year: 1963
- Author: Wolfgang Metzger
- Language: German
- Year: 1976
- Author: Dr. Wolfgang Metzger (auth.)
- Language: German
- Year: 1968
- Author: Dr. Wolfgang Metzger (auth.)
- Language: German
- Year: 1954
- Author: Prof. Dr. Wolfgang Metzger (auth.)
- Language: German
- Year: 1975
- Author: Dr. Wolfgang Metzger (auth.)
- Language: German
- Year: 1941
- Author: Wolfgang Metzger (auth.) Kurt Guss Dipl.-Psych. Dr. phil. (eds.)
- Language: German
- Year: 1975