Edward Ortleb · Edward P. · Edward Paul Ortleb
| title | ISBN-13 | year of publication |
|---|---|---|
| Life in the Grasslands | 978-0-7877-0348-6 | 1998 |
| Life in the Ocean | 978-0-7877-0305-9 | 1997 |
| Life in the Rainforest | 978-0-7877-0302-8 | 1997 |
| Life in the Temperate Forest | 978-0-7877-0303-5 | 1997 |
| Life in the Tundra | 978-0-7877-0347-9 | 1998 |
| Magnets: Thematic Unit | 978-0-7877-0047-8 | 1996 |
| Nutrition | 978-0-7877-0346-2 | 1997 |
| Oceanography | 978-1-55863-058-1 | 1991 |
| Seasons and Living Things | 978-1-55863-027-7 | 1988 |
| Sky | 978-0-7877-0053-9 | 1996 |