APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.