APA ציטוט

De Boer, B. (2001). The origins of vowel systems. Oxford ; New York: Oxford University Press.

Trích dẫn kiểu Chicago

De Boer, Bart. The Origins of Vowel Systems. Oxford ; New York: Oxford University Press, 2001.

ציטוט MLA

De Boer, Bart. The Origins of Vowel Systems. Oxford ; New York: Oxford University Press, 2001.