| Autor | Częstotliwość |
|---|---|
| Runes, Dagobert D. | 20 |
| Barnes, Harry Elmer | 1 |
| Bender, Wolfgang | 1 |
| Elwes, R. H. M. | 1 |
| Marx, Karl | 1 |
| Philosophical Library Inc | 1 |
| Schnieper, Xaver, 1910-1992 1910-1992 | 1 |
| Spinoza, Baruch | 1 |
| Autor | Częstotliwość |
|---|---|
| Runes, Dagobert D. | 20 |
| Barnes, Harry Elmer | 1 |
| Bender, Wolfgang | 1 |
| Elwes, R. H. M. | 1 |
| Marx, Karl | 1 |
| Philosophical Library Inc | 1 |
| Schnieper, Xaver, 1910-1992 1910-1992 | 1 |
| Spinoza, Baruch | 1 |