| Author | Titles | | 1.
| North-South Centre of the Council of Europe | 1 | | 2.
| Norton, António | 2 | | 3.
| Norton, Christopher | 1 | | 4.
| Norton, Cristina | 2 | | 5.
| Norton, Frank H. | 1 | | 6.
| Norton, Frederick John | 1 | | 7.
| Norton, Inês, 19--?- | 1 | | 8.
| Norton, Inês, 1982- | 2 | | 9.
| Norton, Isolda | 0 | | 10.
| Norton, Lucy | 3 |
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