| Autor | Títulos | 1.
| Ryan, Paddy | 1 | 2.
| Ryan, Paul | 3 | 3.
| Ryan, Rebecca E. | 1 | 4.
| Ryba, Barbara-Christine | 2 | 5.
| Rybczynski, Mieczyslaw | 0 | 6.
| Ver: Rybczynski, Mieczyslaw, 1873-1937 | 1 | 7.
| Rybczynski, Mieczyslaw, 1873-1937 | 1 | 8.
| Ryckhoff, J. | 1 | 9.
| Ryckmans, P. | 1 | 10.
| Rycx, François | 3 | 11.
| Rydgren, Jens | 1 |
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