| Author | Titles | | 1.
| Rudolph, Stella | 1 | | 2.
| Rudorff, Raymond | 3 | | 3.
| Rudrauf, Lucien | 4 | | 4.
| Rudt de Collenberg, Wipertus Hugo | 1 | | 5.
| Rudy, Baptista, pseud. | 3 | | 6.
| Related author: Baptista, Manuel Joaquim, 1912-1956 | 2 | | 7.
| Rudy, pseud. | 0 | | 8.
| Author is: Rudy, Baptista, pseud. | 3 | | 9.
| Rudy, pseud. | 0 | | 10.
| Related author: Rudy, Baptista, pseud. | 3 | | 11.
| Related author: Baptista, Manuel Joaquim, 1912-1956 | 2 | | 12.
| Rudzinski, Pietr | 1 | | 13.
| Rudzinski, Piotr | 1 | | 14.
| La Rue, Charles de | 1 |
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