| Author | Titles | | 1.
| Refern, Christine | 1 | | 2.
| Reff, Theodore | 7 | | 3.
| Refflinghaus, Christine | 1 | | 4.
| Refoios, Joaquim de Sousa, 1853-1905 | 2 | | 5.
| Rega Castro, Iván, 1980- | 1 | | 6.
| Regadas, Cristina, 1977- | 2 | | 7.
| Regal, Bernardo | 2 | | 8.
| Regal, Diana | 1 | | 9.
| Regal, João | 1 | | 10.
| Regala, Francisco Augusto da Fonseca | 1 |
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