| Author | Titles | | 1.
| Ladeira, Alberto | 1 | | 2.
| Ladeira, Carlos | 5 | | 3.
| Ladeira, Carolina Meireles, 1993- | 1 | | 4.
| Ladeira, Elisabete | 1 | | 5.
| Ladeira, Paulo | 1 | | 6.
| Ladeira, Raul | 148 | | 7.
| Ladeira, Raúl José Marmelo Santana, 1962- | 0 | | 8.
| Author is: Ladeira, Raúl Santana, 1962- | 1 | | 9.
| Ladeira, Raúl Santana, 1962- | 1 | | 10.
| Ladeiro, Ângela, 1943- | 1 | | 11.
| Ladeiro, Helena | 2 |
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