| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Essays on Wittgenstein's Tractatus | 978-0-415-38279-3 (0-415-38279-3) | 2005 | Irving M. Copi |
| Essays on Wittgenstein's Tractatus | 978-0-02-843180-2 (0-02-843180-4) | 1973 | " |
R. B · R. Beard · Robert B. · Robert Beard · Robert W. · W. B.