Gutenberg - Bechtel, Guy, <1931- >. (OLS)http://semarc/name/22080 (Società Editrice Internazionale, 1995)
Keywords: Gutenberg, Johann <ca. 1400-1468>. (OLS)http://semarc/subject/9496; Stampa - Storia. (OLS)http://semarc/subject/9497