| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1962 | 978-0-87965-001-8 | Richard A. Boning | Specific Skill, Book A: Using the Context |
| '' | 978-0-87965-002-5 | Richard Boning | Using the Context Book B |
| '' | 978-0-87965-005-6 | Using the Context Book E | |
| 1982 | 978-0-87965-734-5 | Richard A. Boning | Specific Skill Series: Getting the facts D (Specific Skill Series) |
| '' | 978-0-87965-739-0 | Specific Skill Series GETTING THE FACTS Booklet H | |