| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| A Comparative Grammar of the South African Bantu Language, Comprising Those of Zanzibar, Mozambique, the Zambesi, Kafirland, Benguela, Angola, the Congo, the Ogowe, the Cameroons, the Lake Region, Etc | 978-1-313-83623-4 (1-313-83623-O) | 2013 |