Cita APA (7a ed.)

The Economist. (2007). El mundo en cifras (ed. 2008.). The Economist Newspaper.

Cita Chicago Style (17a ed.)

The Economist. El Mundo En Cifras. ed. 2008. London: The Economist Newspaper, 2007.

Cita MLA (9a ed.)

The Economist. El Mundo En Cifras. ed. 2008. The Economist Newspaper, 2007.