| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Cobol/370: For Vs Cobol and Cobol II Programmers | 978-0-07-006583-3 (0-07-006583-7) | 1993 |
| COBOL II: Programming Techniques, Efficiency Considerations, Debugging Techniques | 978-0-07-006533-8 (0-07-006533-0) | 1990 |