^Clouse, Doug (2009). The Handy Book of Artistic Printing: Collection of Letterpress Examples with Specimens of Type, Ornament, Corner Fills, Borders, Twisters, Wrinklers, and other Freaks of Fancy. Princeton Architectural Press.
^Clouse, Doug (2009). The Handy Book of Artistic Printing: Collection of Letterpress Examples with Specimens of Type, Ornament, Corner Fills, Borders, Twisters, Wrinklers, and other Freaks of Fancy. Princeton Architectural Press.