Minkova, D., & Stockwell, R. P. (2009). English words: History and structure (2nd ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Minkova, Donka, agus Robert P. Stockwell. English Words: History and Structure. 2nd ed. Cambridge, [England]: Cambridge University Press, 2009.
Lua MLA (9ú heag.)Minkova, Donka, agus Robert P. Stockwell. English Words: History and Structure. 2nd ed. Cambridge University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.