"banned book" . . . "world system" . . "Two World Systems" . "Dialogo sopra i due massimi sistemi del mondo Tolemaico, e Coperniciano" . . . . . "Galileo's ''Dialogo''" . . . . "''Dialogue''" . . . . . . . . . . . . . . "Dialogue" . . . "Dialogue Concerning the Two Chief Systems of the World" . . . "Dialogue Concerning the Two Chief World Systems" . "Dialogue Concerning the Two Chief World Systems" . . "Dialogo" .