| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Challenges | 978-0-13-009101-7 (0-13-009101-4) | 1991 | H. Douglas Brown · Deborah Cohen · Jennifer O'Day |
| Challenges: A Process Approach to Academic English | 978-0-13-009085-0 (0-13-009085-9) | 1990 | H. Douglas Brown · Deborah S. Cohen · Jennifer O'Day |
J.D. · J. Day · Jennifer A. O'Day · Jennifer Day · O D · O'day