APA aipamena

(2007). The Economist Maret 2007. Principal Comercial.

Chicago Style aipamena

The Economist Maret 2007. Principal Comercial, 2007.

MLA aipamena

The Economist Maret 2007. Principal Comercial, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.