Markley, R. (1996). Virtual realities and their discontents. Johns Hopkins Univ. Pr..
Lua i Stíl Chicago (17ú heag.)Markley, Robert. Virtual Realities and Their Discontents. Baltimore ; London: Johns Hopkins Univ. Pr., 1996.
Lua MLA (8ú heag.)Markley, Robert. Virtual Realities and Their Discontents. Johns Hopkins Univ. Pr., 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.