| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Diagnostic Evaluation of Language Variation-Screening Test: Examiner's Manual | 978-O-15-8O92O5-8 (O-15-8O92O5-8) | 2003 | Harry Seymour · Thomas Roeper · Jill De Villiers |
de Villiers · P. de Villiers · P. V. · Peter D. · Peter Villiers