| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1970 | 978-0-87825-001-1 | Caleb Gattegno | Algebricks Exercise Workbooks 1-6 |
| 1978 | 978-0-87825-046-2 | Caleb Gattegno | Teaching Foreign Languages in Schools: The Silent Way |
| 1976 | 978-0-87825-071-4 | '' | Common Sense of Teaching Foreign Languages |
| 1987 | 978-0-87825-192-6 | '' | The Science of Education Part 1: Theoretical Considerations |
| 2010 | 978-0-87825-213-8 | '' | The Adolescent and His Will |