Andrews McMeel Publishing · Scholastic
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 50 Simple Things Kids Can Do To Save The Earth | 978-0-590-44249-7 (0-590-44249-X) | 1991 | |
| 50 Simple Things Kids Can Do to Save the Earth | 978-0-8362-2301-9 (0-8362-2301-2) | 1990 | |
| The New 50 Simple Things Kids Can Do to Save the Earth | 978-0-7407-7746-2 (0-7407-7746-7) | 2009 | Sophie Javna |