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"The advantages and disadvantages of a wide range of research methods are assessed, and guidance is given on how to decide exactly what information is necessary, and how to obtain it, given the resources of time, personnel, and money available. Illustrated with actual examples from the experience of ... more
"Guide qui couvre la période 1960-64 pour les principaux ouvrages parus en français sur les problèmes généraux du sous-développement." (Jean-Marie Van Bol, Abdelfattah Fakhfakh: The use of mass media in the developing countries. Brussels: CIDESA, 1971 Nr. 2160, topic code 08)