| Author | Titles | | 1.
| Zuliani, Augusto | 1 | | 2.
| Zuliani, Fulvio | 1 | | 3.
| Zulmiro, 1940- | 1 | | 4.
| Zulmiro, 1940- | 0 | | 5.
| Author is: Carvalho, Zulmiro de, 1940- | 40 | | 6.
| Zulmiro de Carvalho, 1940- | 0 | | 7.
| Author is: Carvalho, Zulmiro de, 1940- | 40 | | 8.
| Zuloaga, 1870-1945 | 0 | | 9.
| Author is: Zuloaga, Ignacio, 1870-1945 | 1 | | 10.
| Zuloaga, Ignacio, 1870-1945 | 1 | | 11.
| Zuloaga y Zabaleta, Ignacio, 1870-1945 | 0 | | 12.
| Author is: Zuloaga, Ignacio, 1870-1945 | 1 | | 13.
| Zulueta, Antonio de | 1 | | 14.
| Zulueta de Haz, Alfonso | 1 |
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