| Author | Titles | | 1.
| Groom, Simon | 3 | | 2.
| Groome, W. H. C. | 2 | | 3.
| Groos, Karl 1861-1946 | 2 | | 4.
| Groos, Otto, | 1 | | 5.
| Groos, Ulrike, 1963- | 5 | | 6.
| Groot, Cornelis Hofstede de , 1863-1930 | 0 | | 7.
| Author is: Hofstede de Groot, C., 1863-1930 | 2 | | 8.
| Groot, Elbrig de | 2 | | 9.
| Groot, Irene de | 2 | | 10.
| Groot, Marjan, 1959- | 2 | | 11.
| Groot, Paul | 1 |
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