| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Discrete and System Models: Volume 3: Discrete and System Models | 978-0-387-90724-6 (0-387-90724-6) | 1983 | W.F. Lucas · R.M. Thrall | |
| Modules in Applied Mathematics: Discrete and System Models Vol 3 | 978-3-540-90724-4 (3-540-90724-6) | 1983 | W. F. Lucas · R. M. Thrall |
and Fred S. Roberts · Elizabeth F. S. Roberts · F. Roberts · F・S · F. S. Roberts Elizabeth · F Stone Roberts · Fred S. Roberts · Frederick Sleigh Roberts Roberts · S R · S Roberts