| Author | Titles | | 1.
| Robertson, Theodore | 2 | | 2.
| Robertson, Toni | 1 | | 3.
| Robertson, William, 1721-1793 | 2 | | 4.
| Roberty, Eugène de, 1843-1915 | 5 | | 5.
| Robette, Sabine | 1 | | 6.
| Robey, Ethan | 1 | | 7.
| Robi, Maria Emília | 1 | | 8.
| Robiati, Alberto | 1 | | 9.
| Robic, Jean-François, 1951- | 1 | | 10.
| Robic, Julien | 1 |
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