| Author | Titles | | 1.
| António Rodrigues | 1 | | 2.
| Antonio Rodríguez, Angel | 2 | | 3.
| António Rosado, 1952- | 0 | | 4.
| Author is: Rosado, António de Campos, 1952- | 17 | | 5.
| António Sampaio, 1916-1994 | 0 | | 6.
| Author is: Sampaio, António 1916-1994 | 11 | | 7.
| António, Santo, 1195-1231 | 4 | | 8.
| António Sapage, 1949- | 0 | | 9.
| Author is: Sapage, António, 1949- | 1 | | 10.
| Antonio Saura, 1930-1998 | 0 | | 11.
| Author is: Saura, Antonio, 1930-1998 | 20 | | 12.
| António Sena, 1941- | 0 | | 13.
| Author is: Sena, António, 1941- | 82 | | 14.
| António Soares, 1894-1978 | 0 | | 15.
| Author is: Soares, António, 1894-1978 | 62 | | 16.
| António Toledo, Juan, 1940-1995 | 1 |
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