Cita APA (7a ed.)

Liebert, R. M., & Sprafkin, J. N. (1988). The early window: Effects of television on children and youth Pergamon general psychology series.

Cita Chicago Style (17a ed.)

Liebert, Robert M., y Joyce N. Sprafkin. "The Early Window: Effects of Television on Children and Youth." Pergamon General Psychology Series 1988.

Cita MLA (9a ed.)

Liebert, Robert M., y Joyce N. Sprafkin. "The Early Window: Effects of Television on Children and Youth." Pergamon General Psychology Series, 1988.