| Author | Titles | | 1.
| Ladouceur, Jean-Paul | 1 | | 2.
| Ladrière, Jean | 1 | | 3.
| Ladstetter, Günther | 1 | | 4.
| Ladurie, Emmanuel Le Roy, 1929- | 6 | | 5.
| Ladurie, J. Le Roy, 1902- | 1 | | 6.
| Ladurie, Jacques Le Roy, 1902- | 0 | | 7.
| Author is: Ladurie, J. Le Roy, 1902- | 1 | | 8.
| Lady Callcott | 1 | | 9.
| Lady Murasaki | 1 | | 10.
| Laederach, Jurg | 2 | | 11.
| Laemmer, Hugo | 1 |
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