Scarecrow Press · University Press of America
| title | ISBN-13 (ISBN-10)  | year of publication | 
|---|---|---|
| Historical Dictionary of Sierra Leone | 978-0-8108-5339-3 (0-8108-5339-6)  | 2006 | 
| Introduction to the History of African Civilization: Colonial and Post-Colonial Africa- Vol. II | 978-0-7618-2107-6 (0-7618-2107-4)  | 2001 |