Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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