| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Contracts | 978-0-314-73434-1 (0-314-73434-1) | 1990 | Claude D. Rohwer |
| Contracts in a Nutshell | 978-0-314-21201-6 (0-314-21201-9) | 1997 | " |
| Contracts in a nutshell | 978-0-314-78065-2 (0-314-78065-3) | 1984 | " |