| Author | Titles | | 1.
| O'Brian, John, 1944- | 3 | | 2.
| O'Brian, Melanie | 1 | | 3.
| O'Brien, Adolphe C. | 1 | | 4.
| O'Brien, Beth | 10 | | 5.
| O'Brien, Carol | 1 | | 6.
| O'Brien, Catherine | 1 | | 7.
| O'Brien, David | 1 | | 8.
| O'Brien, Elaine, 1945- | 1 | | 9.
| O'Brien, Gerry | 1 | | 10.
| O'Brien, Glenn, 1947-2017 | 5 |
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