| Author | Titles | | 1.
| Rhomberg, Kathrin | 4 | | 2.
| R.H.P., 1975- | 0 | | 3.
| Author is: Pereira, Rui Horta, 1975- | 9 | | 4.
| RHWL Architects | 1 | | 5.
| Rhys, Ernest, 1859-1946 | 16 | | 6.
| Rhys, Udal Ap | 1 | | 7.
| Ria, Alberto | 1 | | 8.
| Riall, Nicholas | 1 | | 9.
| Rialto, João, pseud. | 4 | | 10.
| Rialto6 (Lisboa, Portugal) | 1 | | 11.
| Riambau e Sauri, Esteve | 5 |
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