APA aipamena

Billing, R. (2011). Tales from the fiture. European Union.

Chicago Style aipamena

Billing, Robert. Tales from the Fiture. European Union, 2011.

MLA aipamena

Billing, Robert. Tales from the Fiture. European Union, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.