I. P. · Irena Pfeiffer · Irene Pieper
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Enjoying American History | 978-0-87720-634-7 | 1995 | Henry Abraham |
| Enjoying Global History | 978-1-56765-633-6 | 2006 | " |
| Enjoying Global History | 978-0-87720-890-7 | 1996 | " |
| Enjoying World History | 978-0-87720-620-0 | 1977 | " |