Dyfyniad APA

(1977). The economics of new educational media: Present status of research and trends. Unesco.

Dyfyniad Arddull Chicago

The Economics of New Educational Media: Present Status of Research and Trends. London: Unesco, 1977.

Dyfyniad MLA

The Economics of New Educational Media: Present Status of Research and Trends. Unesco, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.