| Author | Titles | | 1.
| Langlois, Juan Carlos, 1926- | 2 | | 2.
| Langlois, Victor, 1829-1869 | 3 | | 3.
| Langlois, Yves | 1 | | 4.
| Langlotz, Ernst | 1 | | 5.
| Langlotz, Ernst, 1895-1978 | 1 | | 6.
| Langmatt Museum (Baden, Suíça) | 1 | | 7.
| Langmead, Donald | 1 | | 8.
| Langmuir, Erika | 4 | | 9.
| Langnas, Isaac A. | 1 | | 10.
| Langner, Johannes | 1 |
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