Hachette Book Group USA · HarperCollins
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Cosmic Chickens | 978-0-06-021583-5 (0-06-021583-6) | 1988 | |
| Cosmic Chickens | 978-0-06-021584-2 (0-06-021584-4) | 1988 | |
| The Secret Life of Mr. Weird | 978-0-316-03428-9 (0-316-03428-2) | 1982 | Jeffrey Allen |