(1993). VIPP: Visualisation in Participatory Programmes : a manual for facilitators and trainers involved in participatory group events. UNICEF.
Παραπομπή σε μορφή Chicago (17η εκδ.)VIPP: Visualisation in Participatory Programmes : A Manual for Facilitators and Trainers Involved in Participatory Group Events. Bangladesh: UNICEF, 1993.
Παραπομπή σε μορφή MLA (9th εκδ.)VIPP: Visualisation in Participatory Programmes : A Manual for Facilitators and Trainers Involved in Participatory Group Events. UNICEF, 1993.
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