| Author | Titles | | 1.
| Langle, Louis de | 1 | | 2.
| Langle, Ségolène Bergeon | 1 | | 3.
| Langley, Batty | 1 | | 4.
| Langlois, A. | 1 | | 5.
| Langlois, Charles V., 1863-1929 | 5 | | 6.
| Langlois, Ernest | 2 | | 7.
| Langlois, Gérard | 1 | | 8.
| Langlois, Gilles-Antoine | 1 | | 9.
| Langlois, Henri | 2 | | 10.
| Langlois, Juan Carlos, 1926- | 2 |
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