| Author | Titles | | 1.
| Spinelli, Luigi | 2 | | 2.
| Spinelli, Manlio Maria | 1 | | 3.
| Spinelli, Ricardo | 1 | | 4.
| Spinelli, Riccardo | 1 | | 5.
| Spinelli, Vincenzo, 1896-1973 | 3 | | 6.
| Spinger, Lynn E. | 1 | | 7.
| Spingfeldt, Björn | 1 | | 8.
| Spini, Giorgio | 1 | | 9.
| Spink, Michael | 1 | | 10.
| Spink, Nesta R. | 1 |
|
|
