Cita APA (7th ed.)
MAY, P. W. (1903). Sketch-Book: 50 cartoons.
Cita Chicago (17th ed.)
MAY, Philip William. Sketch-Book: 50 Cartoons. London, 1903.
Cita MLA (9th ed.)
MAY, Philip William. Sketch-Book: 50 Cartoons. 1903.
Atenció: Aquestes cites poden no estar 100% correctes.