Heim, M. (1998). Virtual realism. Univ. Press.
Lua i Stíl Chicago (17ú heag.)Heim, Michael. Virtual Realism. New York ; Oxford: Univ. Press, 1998.
Lua MLA (8ú heag.)Heim, Michael. Virtual Realism. Univ. Press, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.