| Autor | Títulos | 1.
| Oberli-Turner, Maureen | 1 | 2.
| Oberly, Michelle | 1 | 3.
| Obermaier, Hugo, 1877-1946 | 2 | 4.
| Obermann, Bruno | 1 | 5.
| Obermeier, James | 1 | 6.
| Oberorfer, Aldo | 1 | 7.
| Oberösterreichischen Landesmuseum. Landesgalerie (Linz, Áustria) | 1 | 8.
| Oberstebrink, Christina | 1 | 9.
| Oberthür, Mariel | 1 | 10.
| Oberti, Carlo | 1 |
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