K. K. Chang,
«Intensive village health improvement program in Taiwan, Republic of China». International Development Research Centre (IDRC), Ottawa, Ont, Canada, p. 1 microfiche (2, 10 p.): tab.
Internal Report / IWARSI. International Waterlogging and Salinity Research Institute.
C. H. Internatio Geneva,
«The International Federation software tools for long-term water and sanitation programming». International Federation of Red Cross and Red Crescent Societies, Geneva, Switzerland, p. 57 p.; photographs; tab.; fig.