| Author | Titles | 1.
| Cliche, Danielle | 1 | 2.
| Cliff, Clarice, 1899-1972 | 1 | 3.
| Cliff, Stafford | 7 | 4.
| Cliff, Tony, 1917-2000 | 3 | 5.
| Clifford, Anne | 1 | 6.
| Clifford, David, 1974-2015 | 3 | 7.
| Clifford, Derek | 2 | 8.
| Clifford, Helen M. | 1 | 9.
| Clifford, James | 2 | 10.
| Clifford, John | 2 |
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