| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Activities for Young Gardeners | 978-0-7175-0599-9 | 1972 | |
| Activities for Young Naturalists | 978-0-7175-0500-5 | ||
| Outlines of Tropical Animal Biology | 978-0-7175-0109-0 | 1976 | Antony R. Kenney |
| Outlines of Tropical Plant Biology | 978-0-7175-0108-3 | " | |
| Tropical Wild Flowers | 978-0-7175-0107-6 | 1963 | |