Ward, M. (1979). Socio-economic data sets for urban and rural areas: A pilot study for Kenya. Development Centre of the Organisation for Economic Co-operation and Development.

Ward, Michael. Socio-economic Data Sets for Urban and Rural Areas: A Pilot Study for Kenya. Paris: Development Centre of the Organisation for Economic Co-operation and Development, 1979.

Ward, Michael. Socio-economic Data Sets for Urban and Rural Areas: A Pilot Study for Kenya. Development Centre of the Organisation for Economic Co-operation and Development, 1979.