D G · W G · Willibrord DeGraaf
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|---|
| Sociogenesis Reexamined | Hardcover | 978-0-387-94276-6 (0-387-94276-9) | 1994 | Robert Maier | |
| Sociogenesis Reexamined | Gebunden | 978-3-540-94276-4 (3-540-94276-9) | 1994 | " |