| Author | Titles | 1.
| Roberts, Claire | 1 | 2.
| Roberts, Colin, 1974- | 1 | 3.
| Roberts, Craige | 1 | 4.
| Roberts, D. Andrew | 1 | 5.
| Roberts, Dafydd Rees | 1 | 6.
| Roberts, David | 1 | 7.
| Roberts, David, 1937- | 1 | 8.
| Roberts, David Cleaton | 1 | 9.
| Roberts, Edward H. | 1 | 10.
| Roberts, George, pseud. | 1 |
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