| Author | Titles | 1.
| O'Neal, Hank | 1 | 2.
| O'Neal, Mary Lovelace, 1942- | 1 | 3.
| Onegger, A., 1892-1955 | 0 | 4.
| Author is: Honegger, Arthur, 1892-1955 | 2 | 5.
| Onegger, Arthur, 1892-1955 | 0 | 6.
| Author is: Honegger, Arthur, 1892-1955 | 2 | 7.
| O'Neil, Alexandre | 1 | 8.
| O'Neil, Eugenio | 1 | 9.
| O'Neil, G. Christopher | 1 | 10.
| O'Neil, John P. | 3 | 11.
| O'Neil, Maria de Eça | 1 | 12.
| O'Neil, Mary Lou | 1 |
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