| Author | Titles | | 1.
| Callow, James T. | 1 | | 2.
| Calloway, Stephen | 11 | | 3.
| Callu, Florence | 2 | | 4.
| Callwey, Georg D. W. | 1 | | 5.
| Calmels, Célestin Anatole, 1822-1906 | 4 | | 6.
| Calmes, Christian | 1 | | 7.
| Calmette, Joseph, 1873-1952 | 6 | | 8.
| Calmette, Joseph Louis Antoine | 1 | | 9.
| Calmettes, Albert | 1 | | 10.
| Calmettes, Fernand, 1846-1914 | 1 |
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