H.W. · Haywood Wald Ph.D. · Heywood Wald
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| French Is Fun Book 1 | 978-0-87720-496-1 (0-87720-496-9) | 1991 | Gail Stein |
| French Is Fun Book 1: Exercise Book | 978-1-56765-319-9 (1-56765-319-7) | 2003 | " |
| Spanish Is Fun: Book 2 | 978-1-56765-485-1 (1-56765-485-1) | 2005 | |