Cita APA (7a ed.)

Roberts, W. (1893). Printers'Marks: A chapter in the history of Typography. Bell.

Cita Chicago Style (17a ed.)

Roberts, Wilhelm. Printers'Marks: A Chapter in the History of Typography. London: Bell, 1893.

Cita MLA (9a ed.)

Roberts, Wilhelm. Printers'Marks: A Chapter in the History of Typography. Bell, 1893.