Heinemann · Three Continents Pr
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Critical Perspectives on Christopher Okigbo | 978-0-89410-259-2 (0-89410-259-1) | 1984 | |
| Igbo Traditional Verse | 978-0-435-90129-5 (0-435-90129-X) | 1973 | Romanus N. Egudu |