| Author | Titles | | 1.
| Clark, Gregory T. | 2 | | 2.
| Clark, Gregory T., 1951- | 1 | | 3.
| Clark, Hazel | 2 | | 4.
| Clark, Ian Christie | 1 | | 5.
| Clark, J. Desmond | 1 | | 6.
| Clark, Jane | 1 | | 7.
| Clark, Jean Marie | 1 | | 8.
| Clark, John | 7 | | 9.
| Clark, John Caer, 1878-1943 | 1 | | 10.
| Clark, John D., 1950- | 1 |
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