Powerful images slide programmes and filmstrips to inform, motivate and train in developing countries planning, production and use guide.

Powerful images slide programmes and filmstrips to inform, motivate and train in developing countries

書目詳細資料
格式: 圖書
語言:English
出版: Rome Food and Agriculture Organization of the United Nations 1990.
主題:
Audio-visual materials.
Audio-visual equipment.
Educational technology.