A. Z. · C.A. · Carl A. · Carl Zapffe
| title | ISBN-13 | year of publication |
|---|---|---|
| Indian Days in Minnesota's Lake Region | 978-0-910623-06-3 | 1990 |
| Kahbe Nagwi Wens: The Man Who Lived In 3 Centuries | 978-0-910623-00-1 | 1977 |
| Minnesota's Chippewa Treaty of 1837 | 978-0-910623-08-7 | 1994 |
| Oldtimers: Stories of Our Pioneers in the Cass and Crow Wing Lake Region | 978-0-910623-03-2 | 1987 |