| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ctos/Open Application Programming Interface Specification: Networking Services | 978-0-13-194655-2 (0-13-194655-2) | 1992 |
| Ctos/Open Programming Practices and Standards: Application Design | 978-0-13-194382-7 (0-13-194382-0) | 1991 |