por Weizsäcker, Carl Friedrich Freiherr von, 1912-2007 [autor] | García Borrón, Juan Carlos [traductor] | Weizsäcker, Carl Friedrich Freiherr von, 1912-2007. Relevance of science.
por Mitchel, David [autor] | García Borrón, Juan Carlos [traductor] | Mitchel, David. Introduction to logic.