Perfection Learning · Scholastic
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Bats | Hardcover | 978-0-7569-1766-1 | 2001 |
| Scholastic Reader Level 1: Bats | Paperback | 978-0-545-23754-3 | 2010 |
| Scholastic Science Readers: Bats | " | 978-0-439-29582-6 | 2001 |
| Scholastic Science Readers: Skeletons | " | 978-0-439-29586-4 | 2001 |
| Skeletons | " | 978-0-545-33148-7 | 2011 |
| Skeletons | Hardcover | 978-0-7569-1817-0 | 2001 |