| title | ISBN-13 | year of publication |
|---|---|---|
| Evaluating Acquired Skills in Communication: Expressive Level I | 978-0-7616-9505-9 | 1991 |
| Evaluating Acquired Skills in Communication: Expressive Level II | 978-0-7616-9507-3 | 1991 |
| Evaluating Acquired Skills in Communication: Pre-Language Level | 978-0-7616-9503-5 | 1991 |
| Evaluating Acquired Skills in Communication: Receptive Level I | 978-0-7616-9504-2 | 1991 |
| Evaluating Acquired Skills in Communication: Receptive Level II | 978-0-7616-9506-6 | 1991 |