Dyfyniad APA

Lewis, J. B. (1977). Typography: Design and Practice. Barric and Jenkins.

Dyfyniad Arddull Chicago

Lewis, John B. Typography: Design and Practice. London: Barric and Jenkins, 1977.

Dyfyniad MLA

Lewis, John B. Typography: Design and Practice. Barric and Jenkins, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.