Cita APA (7th ed.)

(2003). Dorling kindersley geography of the world. Dorling Kindersley.

Cita Chicago (17th ed.)

Dorling Kindersley Geography of the World. London: Dorling Kindersley, 2003.

Cita MLA (9th ed.)

Dorling Kindersley Geography of the World. Dorling Kindersley, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.