Author
Adler, Gustav,
1
Blasco Castiñeyra, Jaime,
1
Buber, Martin, 1878-1965,
1
Engels, Friedrich, 1820-1895
1
Engels, Friedrich, 1820-1895,
1
Essad, Bey, 1905-1942
1
Essad, Bey, 1905-1942,
1
Leopold, David
1
Leopold, David,
1
Lukács, György, 1885-1971,
1
Marx, Karl, 1818-1883
2
Marx, Karl, 1818-1883,
1
Muñoz, Jacobo
1
Muñoz, Jacobo,
1
Müller, Herta, 1953-
1
Rovira Armengol, José, 1903-1970,
1
Solar, Juan José del,
1