por Geiger, Theodor Julius, 1891-1952 [autor] | Garzón Valdés, Ernesto [traductor] | Geiger, Theodor Julius, 1891-1952. Uber recht und moral.
por Kelsen, Hans, 1881-1973 [autor] | Garzón Valdés, Ernesto [traductor] | Kelsen, Hans, 1881-1973. Was is gerechtigkeit?.