| Author | Titles | | 1.
| Rodenstock Rolf | 1 | | 2.
| Rodenwaldt, Gerhart | 3 | | 3.
| Rodenwaldt, Gerhart Martin Karl | 2 | | 4.
| Röder, Josef | 1 | | 5.
| Roderick, Nathan Joseph, 1928-2010 | 0 | | 6.
| Author is: Oliveira, Nathan, 1928-2010 | 3 | | 7.
| Rodero Carrasco, Milagros | 1 | | 8.
| Rodero Riaza, Alicia | 1 | | 9.
| Rodés, Andrea | 1 | | 10.
| Rodeschini, Maria Cristina | 2 | | 11.
| Rodezno, Conde de | 1 |
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