| Author | Titles | | 1.
| Darwin, Charles, 1809-1882 | 9 | | 2.
| Darwin, Charles Robert, 1809-1882 | 0 | | 3.
| Author is: Darwin, Charles, 1809-1882 | 9 | | 4.
| Darwin, Erasmus | 2 | | 5.
| Darwin, Francis | 1 | | 6.
| Darzacq, Dominique | 1 | | 7.
| Das, Asok Kumar | 1 | | 8.
| Das, Asok Kumar, 1938- | 2 | | 9.
| Das, Jareh | 1 | | 10.
| Dascal, Marcelo | 1 | | 11.
| Dascher, G., 1851-1912 | 1 |
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