7 1 10 Aristóteles Primary Author Larroyo, Francisco Contributor mixed material México. Editorial Porrúa 1977 Heráclito de Efeso, 540-475 a.C. Primary Author Palacio, Pablo Translator mixed material Santiago de chile Ediciones Ercilla 1935 Aristóteles Primary Author Samaranch, Francisco Translator mixed material 840301001X Madrid Editorial Aguilar 1973 Aristóteles Primary Author Azcárate, Patricio de Translator mixed material Lima Editorial Universo 1974 Platón Primary Author mixed material Colombia Ediciones universales Francisco Beltrán Peña Primary Author Juan José Sanz Adrados Primary Author mixed material Colombia Universidad Santo Tomas 1985 Juan José Sanz Adrados Primary Author Luis José González Álvarez Primary Author mixed material Colombia Universidad Santo Tomas 1984