| Author | Titles | 1.
| Signetto, Sandro | 1 | 2.
| Signorelli, Luca, 1441?-1523 | 5 | 3.
| Signorelli, Mario, 19--?- | 1 | 4.
| Signorini Associati ( (Firma de Arquitectura) | 1 | 5.
| Signorini, Bruno, 19--?- | 1 | 6.
| Signorini, Marcia | 1 | 7.
| Signorini, Oscar | 1 | 8.
| Signorini, Telemaco, 1835-1901 | 1 | 9.
| Sigrist, Peter 19--?- | 1 | 10.
| Siguán, Jordi | 3 |
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