Preferred Forms
- 100 1 _ ‡a Hopwood, James ‡d 1964-
- 100 1 _ ‡a Hopwood, James, ‡d 1964-
Works
Title | Sources |
---|---|
Cool distance assistants : fun science projects to propel things | |
Cool dry ice devices, c2008: | |
Cool gravity activities : fun science projects about balance |