Lua APA (7ú heag.)
Kohnen, T. (2014). Introduction to the history of English. Peter Lang GmbH.
Lua i Stíl Chicago (17ú heag.)
Kohnen, Thomas. Introduction to the History of English. Frankfurt am Main, [Germany] ; Bern, [Switzerland]: Peter Lang GmbH, 2014.
Lua MLA (9ú heag.)
Kohnen, Thomas. Introduction to the History of English. Peter Lang GmbH, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.