1991
I. N. P. S. U. Founda Lucknow,
« The NAP profile in Uttar Pradesh : position paper », in
NAP India '91 : conference on Indo-Dutch bilateral cooperation in rural water supply and sanitation, February 25-26 1991, Lucknow, 1991, p. 7 p.
J. Simon,
« A national communications plan to promote water users associations in Tunisia », vol. no. 344. Environmental Health Project (EHP), Arlington, VA, USA, p. xii, 75 p.: tab., 1991.
B. W. Maendeleo Gaborone et BW, B. Ministry o,
« National rural sanitation programme strategy paper [Botswana] ». Botswana, Ministry of Local Government and Lands, Gaborone, Botswana, p. ca. 150 p.: tab, map, tech. drwng., 1991.
UN Economic Commission for Asia and the Pacific -Bangkok,TH, ESCAP,
« Natural disaster reduction in Asia and the Pacific : launching the international decade for natural disaster reduction. Volume I : water-related natural disasters ». United Nations, New York, NY, USA, p. ix, 228 p.: 11 fig., 6 map., 30 tab., 1991.
M. F. Baldwin,
« Natural resources of Sri Lanka : conditions and trends ». Natural Resources, Energy and Science Authority of Sri Lanka, Colombo, Sri Lanka, p. xi, 280 p.: fig., tab., maps, photogr., 1991.
M. R. Hoque,
« The necessity and scope of rain water harvest in Bangladesh », in
Rainwater catchment for future generations : proceedings of the 5th International Conference on Rain Water Cistern Systems, Keelung, Taiwan, 4-10 August 1991, 1991, p. P. 586-597 : 6 fig.
S. Burchi,
« The need for effective legal and regulatory frameworks ». Food and Agriculture Organization (FAO), Rome, Italy, p. 6, [4] p., 1991.
I. N. Netherland Hyderabad,
« Netherlands assisted projects - Andhra Pradesh : an intervention into the RWS/S sector of AP : an overview », in
NAP India '91 : conference on Indo-Dutch bilateral cooperation in rural water supply and sanitation, February 25-26 1991, Lucknow, 1991, p. 5 p.
D. K. U. N. I. C. E. F. - Copenhagen,
« New lubrication for down the hole hammer drilling », vol. no. 3. UNICEF Water, Environment and Sanitation Section, Copenhagen, Denmark, p. 2 p.: tab., 1991.
J. Kunguru et Mwiraria, M.,
« NGO support to informal settlements : a case study of Kiberia, Nairobi », vol. No. 1-11. UNDP-World Bank, Regional Water and Sanitation Group Eastern and Southern Africa, Nairobi, Kenya, p. iv, 35 p. : boxes, 1991.
G. H. Ghana Wate Accra et London, G. B. WaterAid -,
« NGOs, the district and water as an entry point : a WaterAid conference on rural water provision focusing on the decentralised district structure : held at Elmina, Ghana, March 7-11 1991 », vol. III. WaterAid, London, UK, p. 77 p.: 1 fig., 1 photogr., 3 tab., 1991.
C. A. A. Butijn, Hoadley, A. W., Umolu, J., et Stoveland, S.,
« Nigeria : Rusafiya (rural water supply and sanitation) : report of evaluation mission ». UNDP (United Nations Development Programme), New York, NY, USA, p. 80 p. + annexes (ca. 80 p.): fig., tab., 1991.
N. G. N. E. S. T. - Ibadan,
Nigeria's threatened environment : a national profile. Ibadan, Nigeria: Nigerian Environmental Study / Action Team, 1991, p. vi, 288 p.: fig., photogr., tab.