
- Author: Robert Zubrin Richard Wagner
- Language: English
- Year: 1997

- Author: Richard Wagner
- Language: English
- Year: 2008

- Author: Richard Wagner
- Language: English
- Year: 2009

- Author: Richard Wagner Franz Liszt Francis Hueffer (editor)
- Language: English
- Year: 2009

- Author: Richard Wagner Franz Liszt Francis Hueffer (editor)
- Language: English
- Year: 2009

- Author: Richard Wagner
- Language: English
- Year: 2011

- Author: Sue Jenkins Richard Wagner
- Language: English
- Year: 2010

- Author: Sue Jenkins Richard Wagner
- Language: English
- Year: 2008

- Author: Richard Wagner
- Language: English
- Year: 2009