| Author | Titles | | 1.
| Hartmann, Sadakichi, 1867-1944 | 1 | | 2.
| Hartmann, Thekla | 1 | | 3.
| Hartmann, Thomas Michael | 3 | | 4.
| Hartmann von Aue | 2 | | 5.
| Hartnack, Vicky | 10 | | 6.
| Hartnack, Victoria | 1 | | 7.
| Hartnack, Wilhelm | 1 | | 8.
| Hartnell, Caroline, 19--? - | 1 | | 9.
| Hartog, Arie | 1 | | 10.
| Hartog, François, 1946- | 1 |
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