Gottlob Frege
file:///C:/Users/user/AppData/Local/Microsoft/Windows/INetCache/IE/ZBW24M6X/Translations%20from%20the%20Philosophical%20Writings%20of%20Gottlob%20Frege.%20Basil%20Blackwell%20(1966).pdf
Translations from the Philosophical Writings of Gottlob Frege. Basil Blackwell (1966) (1).pdf