| Author | Titles | | 1.
| Marx, Jean Phillippe | 1 | | 2.
| Marx, Karl, 1818-1883 | 6 | | 3.
| Marx, Linda | 1 | | 4.
| Marx, Mina | 2 | | 5.
| Marx, Murillo | 1 | | 6.
| Marx, Robert Burle, 1909-1994 | 1 | | 7.
| Marx, Roberto Burle, 1909-1994 | 7 | | 8.
| Marx, Roger, 1859-1913 | 7 | | 9.
| Marx, Rudolf | 2 | | 10.
| Marxová, H. | 1 |
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