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