| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| An Index of Nigerian Languages | 978-O-88312-611-O (O-88312-611-7) | 1992 | D. H. Crozier · Keir Hansford · University of Ilorin Dept. of Linguistics & Nigerian Languages · Summer Institute of Linguistics |