| Author | Titles | | 1.
| Barbosa, Lucas | 1 | | 2.
| Barbosa, Luís | 2 | | 3.
| Barbosa, Luis, 1952- | 2 | | 4.
| Barbosa, Luís Eugénio Horta | 1 | | 5.
| Barbosa, Luís Xavier, 1849-1925 | 1 | | 6.
| Barbosa, M. J. Silva | 1 | | 7.
| Barbosa, Manoel, 1953- | 0 | | 8.
| Author is: Barbosa, Manuel, 1953- | 13 | | 9.
| Barbosa, Manuel, 1905- | 1 | | 10.
| Barbosa, Manuel, 1953- | 13 | | 11.
| Barbosa, Manuel P. | 1 |
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