De Boer, B. (2001). The origins of vowel systems. Oxford ; New York: Oxford University Press.
Trích dẫn kiểu ChicagoDe Boer, Bart. The Origins of Vowel Systems. Oxford ; New York: Oxford University Press, 2001.
MLA引文De Boer, Bart. The Origins of Vowel Systems. Oxford ; New York: Oxford University Press, 2001.
警告:這些引文格式不一定是100%准確.