Biblio

P. C. Dreijer, «Contaminacion ambiental en Ecuador», vol. no. 9. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. 102 p., 1981.

J. E. Beverly, «Coordination of WASH information activities and exchange with international information centers : Holland and England, April 5-17, 1981», vol. no. 18. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. 128 p.: in various pagings, 1981.

T. Lagerund, «Cost of main components of water supply schemes», in Water master plans for Rukwa and Kigoma regions : interim report. Part IV. Selected working papers : A, 1981, pp. Working paper no. 18 (22 p., p. A1-A2, p. B1-B14).

I. Urke y Fossum, P., «Cost of water treatment units», in Water master plans for Rukwa and Kigoma regions : interim report. Part IV. Selected working papers : A, 1981, p. Working paper no. 34 (27 p. in various pagings : ill.).

D. J. Casley y Lury, D. A., Data collection in developing countries. Oxford, UK: Oxford University Press, 1981, p. xi, 244 p.: fig., tab.

UNDP -New York, NY, US, «Decade action guide». UNDP Division of Information, New York, NY, USA, p. ((7)) p., 1981.

R. J. Frankel, «Design, construction and operation of a new filter approach for treatment of surface waters in Southeast Asia», Journal of hydrology, pp. p. 319-328: fig., tab., 1981.

D. T. Lauria, «Design guidelines for low-cost water and sanitation», in Project monitoring and reappraisal in the International Drinking Water Supply and Sanitation Decade : papers presented at Session 40, ASCE International Convention, New York, NY, May 11-15, 1981, 1981, pp. P. 196-220 : fig., tab.

F. Ahmed, «Design parameters for rural water supplies in Bangladesh : a thesis». Bangladesh University of Engineering and Technology, Dhaka, Bangladesh, p. xi, 141 p.: fig., tab., 1981.

WHO -Geneva, CH, World Health Organization, Development of indicators for monitoring progress towards health for all by the year 2000, vol. 9241800046. Geneva, Switzerland: World Health Organization (WHO), 1981, p. 91 p.

«Development of small scale systems for iron removal from groundwaters», 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. A. Gill, «Development of water resources in the Sokoto State», in Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.

J. S. Scott y Smith, P. G., «Dictionary of waste and water treatment». Butterworths, London, UK, p. 359 p., 1981.

C. Puech, «Diffusions des rejets en mer». Comite Interafricain d'Etudes Hydrauliques (CIEH), Ouagadougou, Burkina Faso, p. 32 p.: fig., 1981.

I. Andersson y Hannan-Andersson, C., «Domestic water supplies : a vital component in Tanzania's rural development : a consumer-orientated study of selected water schemes in four regions : progress report». Lund University, Lund, Sweden, p. 31, 11 p., 1981.

W. Rybczynski, Double-vault composting toilets : a state-of-the-art review, vol. no. 6. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1981, p. 27 p. + 37 p. annexes : 12 fig.

I. N. A. F. P. R. O. - New Delhi, «Drilling agencies in voluntary sector : meeting». Action for Food Production, New Delhi, India, p. 92 p.: tab., 1981.

UNICEF -New York, NY, US, «A drop of water». UNICEF, New York, NY, USA, p. Slide series (20 slides + text, 4p.), 1981.

I. Carruthers y Stoner, R., Economic aspects and policy issues in groundwater development, vol. no. 496. Washington, DC, USA: World Bank, 1981, p. ii, 6, 110 p.: fig., tab.

H. I. Shuval, Tilden, R. L., Perry, B. H., y Grosse, R. N., «Effect of investments in water supply and sanitation on health status : a threshold-saturation theory», Bulletin of the World Health Organization, pp. p. 243-248: fig., 1981.

M. A. Abdullah, «Engineering measures for the development of surface water resources in Kano State», in Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981, pp. p. 74-79.

H. A. Heckman, «Enterprise performance development». Asian Institute of Technology, Bangkok, Thailand, p. ii, 24 p. + 13 p. annexes : 7 fig., 1981.

PAHO -Washington, DC, US, Environmental health activities of the Pan American Health Organization, vol. no. 1. Washington, DC, USA: Pan American Health Organization (PAHO), 1981, p. vi, 49 p.

WASH -Arlington, VA, US, «Evaluation methods for community rural water supply and sanitation projects in developing countries : a synthesis of available information», vol. no. 4. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. 29 p., 1981.

D. R. Jagannatha Rao, «Evolving high rate filter and use of crushed stone as filter media», Journal of Institution of Engineers (India). EN, pp. p. 92-96, 1981.