| Author | Titles | 1.
| Röhl, Karl Peter, 1890-1975 | 1 | 2.
| Rohlf, F. James | 1 | 3.
| Rohlfs, Gerhard | 1 | 4.
| Rohlmann, Michael | 1 | 5.
| Rohmann, Chris | 1 | 6.
| Rohmer, E. , 1920-2010 | 0 | 7.
| Author is: Rohmer, Eric, 1920-2010 | 3 | 8.
| Rohmer, Elisabeth | 2 | 9.
| Rohmer, Eric, 1920-2010 | 3 | 10.
| Rohn, Matthew | 1 | 11.
| Röhnelt, Mário | 1 |
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