| Author | Titles | | 1.
| Robalo, Lurdes, 1951- | 7 | | 2.
| Robalo, Maria de Lurdes Conceição, 1951- | 0 | | 3.
| Author is: Robalo, Lurdes, 1951- | 7 | | 4.
| Robalo, Mário | 4 | | 5.
| Robalo, Paulo, 1966- | 3 | | 6.
| Roban, Sandra Krizic | 1 | | 7.
| Robaut, Alfred, 1830-1909 | 3 | | 8.
| Robb, Andrew | 1 | | 9.
| Robb, Brian | 2 | | 10.
| Robb, Tom | 1 | | 11.
| Robbe, Wolfgang | 1 |
|
|
