Macmillan · National Geographic
| title | ISBN-13 | year of publication |
|---|---|---|
| Moving from One to Ten | 978-0-02-741981-8 | 1993 |
| MY RIVER | 978-0-02-741980-1 | 1992 |
| Railroad Fever: Building the Transcontinental Railroad 1830-1870 | 978-0-7922-6767-6 | 2004 |
| Railroad Fever: Building the Transcontinental Railroad 1830 - 1870 | 978-0-7922-6993-9 | 2004 |
| Science Chapters: Venus Flytraps, Bladderworts: and Other Wild and Amazing Plants | 978-0-7922-5957-2 | 2006 |