| Author | Titles | 1.
| Valentine, C.S. | 1 | 2.
| Valentine, Lanci | 1 | 3.
| Valentine, Lucia N. | 1 | 4.
| Valentine, Stephen, 19--?- | 1 | 5.
| Valentine, W. H. | 3 | 6.
| Valentine Willie Fine Art Kuala Lumpur (Malásia) | 1 | 7.
| Valentiner, Theodor | 1 | 8.
| Valentiner, Wilhelm Reinhold, 1880-1958 | 12 | 9.
| Valentines-Álvarez, Jaume | 1 | 10.
| Valentinetti, Claudio M. | 1 |
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