| Author | Titles | | 1.
| Confalonieri, Giulio, 1926- | 1 | | 2.
| Confalonieri, Giulio, 1936- | 1 | | 3.
| Confar, Dee | 1 | | 4.
| Confederação Nacional da Inteligencia e do Trabalho | 1 | | 5.
| Conférence de la gravure originale, de la gravure de reproduction..., Paris (França), 1914 | 1 | | 6.
| Conférence Européenne, 4, Lisboa (Portugal), 1986 | 1 | | 7.
| Conférence Europe-Monde, 02, Lisboa (Portugal), 1990 | 1 | | 8.
| Conference Managing in a Global Economy, Porto, 2003 | 1 | | 9.
| Conference of Commonwealth Arts Councils, 02, Montreal (Canadá), 1981 | 1 | | 10.
| Conference of the International Committee for the Conservation of Mosaics, 05, Faro e Conimbriga, 1993 | 1 |
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