Liebert, R. M. (1982). The early window: Effects of television on children and youth (2nd ed.). Pergamon Press.
Chicago-referens (17:e uppl.)Liebert, Robert M. The Early Window: Effects of Television on Children and Youth. 2nd ed. New York: Pergamon Press, 1982.
MLA-referens (9:e uppl.)Liebert, Robert M. The Early Window: Effects of Television on Children and Youth. 2nd ed. Pergamon Press, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.