| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Variety in Contemporary English | Paperback | 978-0-415-08437-6 (0-415-08437-7) | 1991 | W.R. O'Donnell · LORETO Todd |
| Variety in Contemporary English | Hardcover | 978-0-04-421005-4 (0-04-421005-1) | 1980 | W.R. O'Donnell · Professor Loreto Todd |