| Author | Titles | 1.
| Roper, William | 1 | 2.
| Ropero-Regidor, Diego | 1 | 3.
| Ropers, Heinrich | 3 | 4.
| Roppel, Patrick | 1 | 5.
| Rops, Daniel, pseud. | 6 | 6.
| Rops, Félicien, 1833-1898 | 2 | 7.
| Rops, Félicien Victor Joseph, 1833-1898 | 0 | 8.
| Author is: Rops, Félicien, 1833-1898 | 2 | 9.
| Roque, Alfredo | 1 | 10.
| Roque, Amadeu, 1933- | 1 | 11.
| Roque, Amílcar | 1 |
|
|