| Autor | Títulos | | 1.
| Ratier, Laurence | 1 | | 2.
| Ratisbona. Diocese. Museu Diocesano (Alemanha) | 2 | | 3.
| Ratisbonne, Louis | 2 | | 4.
| Ratkovic-Bukovcan, Lada | 1 | | 5.
| Ratkus, Lisa | 1 | | 6.
| Ratnam, Niru | 1 | | 7.
| Ratnavibhushana, Anura | 1 | | 8.
| Ratner, Joseph | 1 | | 9.
| Ratner, Sidney | 1 | | 10.
| Rato, David Luciano, 1976- | 1 |
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