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

書誌詳細
フォーマット: 図書
言語:English
出版事項: Rome Food and Agriculture Organization of the United Nations 1990.
主題:
Audio-visual materials.
Audio-visual equipment.
Educational technology.