APA
Ringe D. A., . (2008). From Proto-Indo-European to Proto-Germanic. Oxford: Oxford University Press.
Chicago
Ringe Donald A, . 2008. From Proto-Indo-European to Proto-Germanic. Oxford: Oxford University Press.
Harvard
Ringe D. A., . (2008). From Proto-Indo-European to Proto-Germanic. Oxford: Oxford University Press.
MLA
Ringe Donald A, . From Proto-Indo-European to Proto-Germanic. Oxford: Oxford University Press. 2008.