Cita APA (7th ed.)

Opie, R. (2003). The 1920s scrapbook. New Cavendish.

Cita Chicago (17th ed.)

Opie, Robert. The 1920s Scrapbook. London: New Cavendish, 2003.

Cita MLA (9th ed.)

Opie, Robert. The 1920s Scrapbook. New Cavendish, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.