Cita APA (7a ed.)
Williams, R. E. A Century of Punch Cartoons. Simon and Schuster.
Cita estilo Chicago (17a ed.)
Williams, Ron E. A Century of Punch Cartoons. Nueva York, EUA: Simon and Schuster.
Cita MLA (9a ed.)
Williams, Ron E. A Century of Punch Cartoons. Simon and Schuster.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.