| Author | Titles | | 1.
| Romaguera i Ramió, Joaquim | 36 | | 2.
| Romahn, Carolina | 1 | | 3.
| Romain, G. | 1 | | 4.
| Romain, Hippolyte | 1 | | 5.
| Romain, Jules, 1499-1546 | 1 | | 6.
| Romain, Lothar | 1 | | 7.
| Romains, Jules | 2 | | 8.
| Romains, Jules, 1885- ? | 4 | | 9.
| Romako, Anton, 1832-1889 | 1 | | 10.
| Roman, Ana | 1 |
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