Autor
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Novella Domingo, Juan
1
Obiols, Guillermo A.
1
Ortega y Gasset, José, 1883-1955
3
Osborne, Richard 1952-
1
Pereyra, Miguel
1
Pigliucci, Massimo 1964-
1
Pita, Enrique B.
1
Platón, 428-347 a. de C.
2
Popper, Karl Raimund, 1902-1994
1
Prentz-Moller, Vibeke
1
Quiles, Ismael, 1906-1993
1
Ramacharaka, Yogi
1
Rohde, Peter Preisler 1902-1978
1
Romero, Francisco
1
Russell, Bertrand, 1872-1970
1
Russelll, Bertrand
1
Sartre, Jean Paul, 1905-1980
2
Scheler, Max, 1874-1928
1
Sciacca, Michele Federico
1
Sztajnszrajber, Darío
3
Vleeschauwer, Herman J. De
1
Voltaire, 1694-1778
1
Zea, Leopoldo
1