1981
B. P. Wolff,
“Half a nation (UNICEF in Ecuador)”. UNICEF, New York, NY, USA, p. Slide series (30 slides + text, 4p.), 1981.
R. R. Bannerman,
“Hand pump maintenance programme : Ghana”, in
Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.
M. M. Riti,
Horizontal roughing filter as pretreatment with slow sand filters, vol. No. N:o 12. Tampere, Finland: Tampere University of Technology, Dept. of Civil Engineering, 1981, p. iv, 145 p. : fig. tab.
B. N. Lohani and Rajagopal, K.,
Human and animal waste management strategies in developing countries, vol. no. 4/5. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1981, p. v, 89 p. : 31 fig., 38 tab.
B. F. C. I. L. S. S. - Ouagadougou, Ouagadougou, B. F. Club du Sa, and Lome, T. G. West Afric,
“Hydraulique villageoise et developpement rural dans le Sahel : rapport de synthese”, vol. D (80) 111. West African Development Bank, Lome, Togo, p. 26 p., 1981.
A. Benamour,
“Hydraulique villageoise et moyens d'exhaure”. Comite Interafricain d'Etudes Hydrauliques (CIEH), Ouagadougou, Burkina Faso, p. Various paging, circa 180 pp. : tab. fig. ref., 1981.
J. D. Lindstrom,
“The impact of interventions in water supply and sanitation in developing countries : proceedings of a seminar held at the Pan American Health Organization, March 25-26, 1980, Washington, DC”. USAID, Washington, DC, USA, p. ix, 158 p.: fig., tab., 1981.
R. F. Carroll,
“Improving the pit latrine”, in
Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.
P. H. Water Reso City and Manila, P. H. Asia Found,
“Installation manual for cylinder pump”. University of San Carlos, Water Resources Center, Cebu, Philippines, p. 23, ((17)) p. of tech. drawings: fig., 1981.
H. Van and Pineo, C. S.,
“Institutional development for IEOS : Instituto Ecuatoriano de Obras Sanitarias : report”, vol. no. 12. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. iii, 57, 3 p.: fig., tab., 1981.
R. B. Isely,
“Intensive session on water, sanitation and health education : a workshop held at UNICEF Headquarters, 22-23 April 1981”, vol. no. 31. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. 16, ((11)) p., 1981.
J. M. Kalbermatten and Montanari, F. W.,
“The International Drinking Water Supply and Sanitation Decade : papers presented at Plenary Session, ASCE International Convention, New York, NY, May 11-15, 1981”. ASCE, Environmental Impact Analysis Research Council, New York, NY, USA, 1981.