| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Baby Mabu and Auntie Moose | Library Binding | 978-0-02-710710-4 | 1983 |
| Bedtime, Zachary! | Hardcover | 978-0-06-020537-9 | 1987 |
| Lola Koala and the Ten Times Worse Than Anything | " | 978-0-06-020539-3 | 1987 |
| Make Friends, Zachary! | " | 978-0-06-020545-4 | 1990 |
| Make Friends, Zachary! | Paperback | 978-0-06-020546-1 | 1990 |
| Play ball, Zachary! | Hardcover | 978-0-06-020543-0 | 1988 |
| Play Ball, Zachary! | Paperback | 978-0-06-020544-7 | 1988 |