P.G. · Peter C. Gega · Peter G.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Concepts and Experiences in Elementary School Science | 978-0-13-716417-2 (0-13-716417-3) | 1997 | Joseph Peters |
| Instructors Manual | 978-0-13-645417-5 (0-13-645417-8) | 1997 | " |