APA aipamena

Umberto Eco & James Fentress. (1995). The search for the perfect language. Harper Collins.

Chicago Style aipamena

Umberto Eco and James Fentress. The Search for the Perfect Language. London: Harper Collins, 1995.

MLA aipamena

Umberto Eco and James Fentress. The Search for the Perfect Language. Harper Collins, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.