Liebert, R. M. (1982). The early window: Effects of television on children and youth (2nd ed.). Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Liebert, Robert M. The Early Window: Effects of Television on Children and Youth. 2nd ed. New York: Pergamon Press, 1982.
Lua MLA (9ú heag.)Liebert, Robert M. The Early Window: Effects of Television on Children and Youth. 2nd ed. Pergamon Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.