
- Author: John G. Harris
- Language: English
- Year: 2001

- Author: Walter Benenson John W. Harris Horst Stöcker Holger Lutz
- Language: English
- Year: 2006

- Author: John G. Harris
- Language: English
- Year: 2001

- Author: Walter Benenson John W. Harris Horst Stöcker Holger Lutz
- Language: English
- Year: 2001

- Author: John G. Harris
- Language: English
- Year: 2001