| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Hubley Toy Vehicles 1965 | 978-0-7643-1405-6 (0-7643-1405-X) | 2001 | |
| Quicksilver | 978-0-7872-2103-4 (0-7872-2103-1) | 1995 | Karl E. Rohnke |
| Quicksilver: Adventure Games, Initiative Problems, Trust Activities and a Guide to Effective Leadership | 978-0-7872-0032-9 (0-7872-0032-8) | 1994 | Karl Rohnke |