| Author | Titles | | 1.
| Lyell, Charles, 1797-1875 | 1 | | 2.
| Lyford, Amy J. | 1 | | 3.
| Lyke, Howie ; Cottone, Debra | 1 | | 4.
| Lyle, Rob | 1 | | 5.
| Lyles, Anne | 7 | | 6.
| Lyman, Elisabeth | 1 | | 7.
| Lyman, Ralph | 1 | | 8.
| Lyna, Fredéric | 2 | | 9.
| Lyna, Jean Frédéric | 0 | | 10.
| Author is: Lyna, Fredéric | 2 | | 11.
| Lynam, Edward | 1 |
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