| Author | Titles | 1.
| Oesterreich, Traugott Konstantin | 1 | 2.
| Oesterreicher-Mollwo, Marianne | 1 | 3.
| Oetker, Brigitte | 2 | 4.
| Oetzman, Peter, 1978 - | 1 | 5.
| Oever, Annie van den | 1 | 6.
| Oey, Peter | 7 | 7.
| Of. Gráf. A. Pacheco (Firma) | 1 | 8.
| Ofélia, 1902-1952 | 0 | 9.
| Author is: Marques, Ofélia, 1902-1952 | 16 | 10.
| Ofélia Marques, 1902-1952 | 0 | 11.
| Author is: Marques, Ofélia, 1902-1952 | 16 | 12.
| Ofen, Michael van | 1 |
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