Cita APA (7th ed.)

Dorling Kindersley. (1999). Ultimate Visual Dictionary: 21st Century Supplement (21st Century Supplement.). DK Publishing.

Cita Chicago (17th ed.)

Dorling Kindersley. Ultimate Visual Dictionary: 21st Century Supplement. 21st Century Supplement. London ; New York: DK Publishing, 1999.

Cita MLA (9th ed.)

Dorling Kindersley. Ultimate Visual Dictionary: 21st Century Supplement. 21st Century Supplement. DK Publishing, 1999.