APA-ийн эшлэл(7 дахь хэвлэлт)

Campbell, L., & Poser, W. J. (2008). Language classification: History and method. Cambridge University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Campbell, Lyle, ба William John Poser. Language Classification: History and Method. Cambridge, UK ; New York: Cambridge University Press, 2008.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Campbell, Lyle, ба William John Poser. Language Classification: History and Method. Cambridge University Press, 2008.