| Author | Titles | | 1.
| Sorroche Cuerva, Miguel Angel | 1 | | 2.
| Sortais, Gaston, 1852-1926 | 4 | | 3.
| Sorujenitsuin, Arekusandoru, 1918-2008 | 0 | | 4.
| Author is: Solzhenitsyn, Alexander, 1918-2008 | 1 | | 5.
| Sosa, Antonio, 1952- | 1 | | 6.
| Sosa Díaz-Saavedra, José Antonio | 1 | | 7.
| Sosa, Luis | 7 | | 8.
| Sosa, Luis de | 1 | | 9.
| Sosa Pinilla, Gustavo | 1 | | 10.
| Sosnowska, Monika, 1972- | 4 | | 11.
| Sossela, Sérgio Rubens | 1 |
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