The Microdata Library facilitates access to data collected through sample surveys of households, business establishments or other facilities. These 'microdata' sets may also originate from population, housing or agricultural censuses or through an administrative data collection processes. The Library contains supporting documentation from censuses and surveys conducted or supported by the World Bank, as well as by other international organizations, statistical agencies and other agencies in low and middle-income countries.
The World Bank. World Bank Online-Microdata Library. The World Bank, Washington DC, USA (2013)