A Greek-English Lexicon Henry George Liddell, Robert Scott, Franz Ludwig Carl Friedrich Passow, Robert Scott
Tractatus logico-philosophicus Ludwig Wittgenstein, Isidoro Reguera Pérez, Ivo Hernández, Spanish, Charles Ogden, David Francis Pears, Brian McGuinness, Luis Manuel Valdés Villanueva, Bertrand Russell
An Etymological Dictionary of the German Language An Etymological Dictionary of the German Language Friedrich Kluge
