| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Investigations into the Origin of Language and Consciousness | 978-90-277-0827-4 (90-277-0827-4) | 1984 | |
| Phenomenology and Dialectical Materialism | 978-90-277-0737-6 (90-277-0737-5) | 1985 | D.J. Herman · D.V. Morano |