| Author | Titles | 1.
| Macgregor, Elizabeth A | 2 | 2.
| MacGregor, Gavin | 1 | 3.
| MacGregor, John Monroe | 1 | 4.
| MacGregor, Neil 1946- | 7 | 5.
| Mach, Ernst, 1838-1916 | 1 | 6.
| Machabert, Dominique, 1959- | 11 | 7.
| Machabey, Armand | 1 | 8.
| Machadinho, José | 1 | 9.
| Machado, A. Cunha | 1 | 10.
| Machado, A. Vitor | 1 |
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