| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Cadastral Surveys within the Commonwealth | 978-0-11-880235-2 (0-11-880235-6) | 1977 |
| Enterprising Peasant: Economic Development in Gombe Emirate North Eastern State, Nigeria, 1900-68 | 978-0-11-880689-3 (0-11-880689-0) | 1976 |