Dudley-Evans, T., & St. John, M. (1998). Developments in ESP: A multi-disciplinary approach. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Dudley-Evans, Tony, agus Maggie-Jo St. John. Developments in ESP: A Multi-disciplinary Approach. New York: Cambridge University Press, 1998.
Lua MLA (8ú heag.)Dudley-Evans, Tony, agus Maggie-Jo St. John. Developments in ESP: A Multi-disciplinary Approach. Cambridge University Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.