APA aipamena

(1993). The Europa world year book 1993: Vol.1. London: Europa Publications.

Chicago Style aipamena

The Europa World Year Book 1993: Vol.1. London: Europa Publications, 1993.

MLA aipamena

The Europa World Year Book 1993: Vol.1. London: Europa Publications, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.