Criteria for the selection and use of visuals in instruction a handbook

Bibliografski detalji
Glavni autor:	Gropper, George L.
Daljnji autori:	Glasgow, Zita
Format:	Knjiga
Jezik:	English
Izdano:	Englewood Cliffs, NJ Educational Technology c1971.
Teme:	Visual aids. Audio-visual materials. Teaching > Aids and devices.