| Author | Titles | | 1.
| Alfred Herrhausen Gesellschaft für Internationalen Dialog | 1 | | 2.
| Alfred Manessier, 1911-1993 | 0 | | 3.
| Author is: Manessier, Alfred, 1911-1993 | 3 | | 4.
| Alfredo, António, 1932-2001 | 12 | | 5.
| Alfredo Ascensão e Paulo Henriques, Arquitectos, Lda. (Firma) | 0 | | 6.
| Author is: AAPH (Firma de Arquitectura) | 2 | | 7.
| Alfredo Ascensão & Paulo Henriques, Arquitectos, Lda. (Firma) | 0 | | 8.
| Author is: AAPH (Firma de Arquitectura) | 2 | | 9.
| Alfredo de Carvalho | 1 | | 10.
| Alfredo Roque Gameiro, 1864-1935 | 0 | | 11.
| Author is: Gameiro, Roque, 1864-1935 | 43 | | 12.
| Alfreishaus, H. F. | 1 | | 13.
| Alfrey, Nicholas | 1 | | 14.
| Alfringhaus, Hans-Friedrich | 1 |
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