| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Longman Pronunciation Dictionary: Study Guide: Study Gde | 978-0-582-05386-1 (0-582-05386-2) | 1991 | |
| Sounds English Cassette Set, 3 Cassettes | 978-0-582-01440-4 (0-582-01440-9) | 1989 | Prof J D O'Connor |
| Sounds English: Pronunciation Practice Book & Audio Tape | 978-0-582-01439-8 (0-582-01439-5) | 1989 | Peter O'Connor · Joanne Kenworthy |