| Author | Titles | | 1.
| Costa, Martins da, 1921- | 13 | | 2.
| Costa, Martins da, 1921-2005 | 1 | | 3.
| Costa, Martyns da, 1921- | 0 | | 4.
| Author is: Costa, Martins da, 1921- | 13 | | 5.
| Costa, Matías, 1973- | 1 | | 6.
| Costa, Mendes da | 1 | | 7.
| Costa, Mercedes | 1 | | 8.
| Costa, Miguel | 1 | | 9.
| Costa, Miguel 1859-1914 | 1 | | 10.
| Costa, Miguel Dias | 1 | | 11.
| Costa, Miguel Horta e | 2 |
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