| Author | Titles | | 1.
| Zagallo, Raquel, 19-- | 4 | | 2.
| Zagalo, José, 1937-2000 | 2 | | 3.
| Zagalo, Lourdes | 1 | | 4.
| Zagalo, Manuel Carlos de Almeida Cayola, 1915-1970 | 11 | | 5.
| Zagalo, Matos | 1 | | 6.
| Zagalo, Nelson | 1 | | 7.
| Zagalo, Z. | 3 | | 8.
| Zagari, Carmelo, 1957- | 1 | | 9.
| Zago, F. | 2 | | 10.
| Zago, Fernando | 1 |
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