| Author | Titles | 1.
| Spitzmuller, Anna | 1 | 2.
| Spivey, Nigel | 3 | 3.
| Spix, Johann Baptist von | 1 | 4.
| Spnecer, Herbert | 1 | 5.
| Spock, Richard | 1 | 6.
| Spodek, Bernard | 2 | 7.
| Spodek, Howard | 1 | 8.
| Spoelberch de Lovenjoul, Visconde de, 1836-1907 | 1 | 9.
| Spoerri, Daniel, 1930- | 5 | 10.
| Spohn, Annette | 1 |
|
|