Crowley, T. (1992). An introduction to historical linguistics (2nd ed.). Oxford University Press.
Citazione stile Chigago Style (17a edizione)Crowley, Terry. An Introduction to Historical Linguistics. 2nd ed. Auckland, NZ: Oxford University Press, 1992.
Citatione MLA (9a ed.)Crowley, Terry. An Introduction to Historical Linguistics. 2nd ed. Oxford University Press, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.