Pioneers in printing: Johann Gutenburg, William Caxton, William Caslon, John Baskerville, Alois Senefelder, Frederick Koenig, Ottmar Mergenthaler, Tolbert Lanston. Jennett, Seán. Printers. Z231 .J4 655.1 JEP London: Routledge & Paul , [1958]. [1958]. 1958 Text 196 p. eng