| Author | Titles | | 1.
| Sopeña, Federico | 1 | | 2.
| Sopena Ibanez, Federico, 1917-1991 | 2 | | 3.
| Sopena, J. A. | 1 | | 4.
| Soper, Alexander | 2 | | 5.
| Soper, Alexander Coburn | 1 | | 6.
| Soper, Eileen | 12 | | 7.
| Soper, Nigel | 6 | | 8.
| Sophia, Paulo | 1 | | 9.
| Sophía Vári, 1940- | 0 | | 10.
| Author is: Vári, Sophía, 1940- | 2 | | 11.
| Sophie Taeuber-Arp, 1889-1943 | 0 | | 12.
| Author is: Taeuber-Arp, Sophie, 1889-1943 | 4 |
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