- Author: Waugh Alexander, Wittgenstein family
- Language: English
- Year: 2009
- Author: Waugh Alexander, Wittgenstein family
- Language: English
- Year: 2009
- Author: Wittgenstein family., Waugh Alexander
- Language: English
- Year: 2009
- Author: Wittgenstein family., Waugh Alexander
- Language: English
- Year: 2009