| Author | Titles | | 1.
| W., I. | 1 | | 2.
| W. K. Kellogg Foundation (Michigan, Estados Unidos) | 1 | | 3.
| W. Lewis | 1 | | 4.
| W., P. | 1 | | 5.
| W., pseud. | 0 | | 6.
| Author is: Gonçalves, António Augusto, 1848-1932 | 6 | | 7.
| W. Wittrock Kunsthandel | 1 | | 8.
| Waage, Frederick O. | 1 | | 9.
| Waagen, G. F. | 1 | | 10.
| Waagen, Gustav Frtiedrich, 1794-1868 | 2 | | 11.
| Waaghaus ( St. Gallen, Suíça ) | 1 |
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