Gramley, S. (2001). The vocabulary of world English. Arnold ; Co-published in the United States of America by Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Gramley, Stephan. The Vocabulary of World English. London : New York: Arnold ; Co-published in the United States of America by Oxford University Press, 2001.
Lua MLA (8ú heag.)Gramley, Stephan. The Vocabulary of World English. Arnold ; Co-published in the United States of America by Oxford University Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.