| Author | Titles | | 1.
| Rybczynski, Witold, 1943- | 6 | | 2.
| Rybeck, Monica | 1 | | 3.
| Rychlik, Otmar | 1 | | 4.
| Ryckmans, Pierre, 1935-2014 | 1 | | 5.
| Ryder, Alan Frederick Charles | 3 | | 6.
| Ryder, Thomas | 1 | | 7.
| Rydingsvard, Ursula von, 1942- | 1 | | 8.
| Ryecart, Guy | 3 | | 9.
| Ryerson, Egerton | 1 | | 10.
| Rygalov, Michel | 1 |
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