| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Alexander Crummell: Pioneer in Nineteenth-Century Pan African Thought | 978-O-313-2557O-O (O-313-2557O-9) | 1987 |
Grégoire Rousseau · Gregory Rich · Gregory Roos · Gregory Rose · Gregory Rouse · Gregory Rucka · Gregory Rusk · Grigore Rosu