| Author | Titles | | 1.
| Rouiller, Jacques | 1 | | 2.
| Rouiller, Jacques Dominique | 1 | | 3.
| Rouir, Eugène | 4 | | 4.
| Rouit, H. | 1 | | 5.
| Roujon, Henri, 1853-1914 | 0 | | 6.
| Author is: Roujon, Henry François Joseph, 1853-1914 | 1 | | 7.
| Roujon, Henry | 5 | | 8.
| Roujon, Henry François Joseph, 1853-1914 | 1 | | 9.
| Roujon, Jacques | 2 | | 10.
| Roukes, Nicholas | 1 | | 11.
| Roulet, Laura | 1 |
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