| Author | Titles | 1.
| Gruber, Leo Fritz 1908–2005 | 0 | 2.
| Author is: Gruber, L. Fritz 1908–2005 | 1 | 3.
| Gruber, Padre | 2 | 4.
| Grubinger, Eva, 1970- | 1 | 5.
| Grubinger, Eva, 1970- | 1 | 6.
| Grubisic, Ljiljana | 1 | 7.
| Grubor, Aleksandra | 1 | 8.
| Grudin, Anthony E. | 1 | 9.
| Grueber, Herbert A. | 1 | 10.
| Gruel, Léon, 1841-1923 | 1 | 11.
| Gruen, John, 1926-2016 | 2 |
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