International Council for Educational Media. (1987). Educational media international. Routledge.
Cita Chicago (17th ed.)International Council for Educational Media. Educational Media International. London: Routledge, 1987.
Cita MLA (9th ed.)International Council for Educational Media. Educational Media International. Routledge, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.