McDonough, J. (1984). ESP in perspective: A practical guide. Collins International.
Lua i Stíl Chicago (17ú heag.)McDonough, Jo. ESP in Perspective: A Practical Guide. London: Collins International, 1984.
Lua MLA (9ú heag.)McDonough, Jo. ESP in Perspective: A Practical Guide. Collins International, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.