(1977). The economics of new educational media: Present status of research and trends. Unesco.
Cita Chicago (17th ed.)The Economics of New Educational Media: Present Status of Research and Trends. London: Unesco, 1977.
Cita MLA (9th ed.)The Economics of New Educational Media: Present Status of Research and Trends. Unesco, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.