Addison-Wesley · Gryphon House
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Discovery Science: Caring For Our Planet | 978-0-201-49666-6 | 2000 | David A. Winnett · Robert E. Rockwell · Robert A. Williams · Robert Rockwell, Elizabeth Sherwood, Robert Williams David A Winnett |
| Everybody Has a Body: Science from Head to Toe | 978-0-87659-158-1 | 1992 | Robert E. Rockwell · Robert A. Williams |
| More Mudpies to Magnets: Science for Young Children | 978-0-87659-150-5 | 1990 | Robert A. Williams · Robert E. Rockwell |
| Mudpies to Magnets: A Preschool Science Curriculum | 978-0-87659-112-3 | 1987 | Robert A. Williams · Robert E. Rockwell |