Biblio

United Nations Department of Economic and Social Affairs -New York, NY, US, «Ground water in Africa». United Nations Department of International Economic and Social Affairs, New York, NY, USA, p. v, 170 p. : tab., 1973.

P. F. Tröften, «Ground water utilization in hard rocks». Atlas Copco MCT AB, Stockholm, Sweden, p. 48 p. : 72 fig., 1973.

IRC International Water and Sanitation Centre, The Hague, NL, «Health aspects relating to the use of uPVC pipes for community water supply : a report of a consultant group», vol. no. 4. IRC, The Hague, The Netherlands, p. 56 p.: fig., tab., 1973.

A. Bodek, «How to construct a cheap wind machine for pumping water : instructions for building a Savonius Rotor for water pumping». Brace Research Institute, Ste. Anne de Bellevue, Que, Canada, p. 13 p.: techn.drawings, graphs, 1973.

J. D. Adeniyi, «Human waste disposal programmes : the place of health education». pp. 8 p. [p. 206-213], 1973.

BCEOM -Paris, FR, Bureau Central d'Etudes pour les Equipements d'Outre-Mer, «Hydraulique pastorale», vol. no. 7. France, Secretariat d'Etat aux Affaires Etrangeres, Paris, France, p. 311 p. : fig., map, photogr., 1973.

I. D. Carruthers, Impact and economics of community water supply : a study of rural water investment in Kenya, vol. report no. 6. Ashford, Kent: Wye College, 1973, p. 120 pp. : 25 tab., 4 fig.

IRC International Water and Sanitation Centre, The Hague, NL, «IRC International Water and Sanitation Centre Annual Report 1972». IRC, The Hague, The Netherlands, p. 38, 1973.

J. C. I. Dooge, Costin, A. B., y Finkel, H. J., Man's influence on the hydrological cycle, vol. no. 17. Rome, Italy: Food and Agriculture Organization (FAO), 1973, p. viii, 71 p., [8] p. pl.: fig., tab.

IRC International Water and Sanitation Centre, The Hague, NL, «Meeting of directors of institutions collaborating with the WHO International Reference Centre for Community Water Supply, Bilthoven, The Netherlands 9-13 April 1973 : report», vol. no. 5. IRC, The Hague, The Netherlands, p. 86 p., 1973.

L. J. Fry y Merill, R., «Methane digester for fuel gas and fertilizer : with complete instructions for two working models». New Alchemy Institute - West, USA, Santa Cruz, CA, USA, p. 46 p. : fig., 1973.

«Methane digestors for fuel gas and fertilizer : with complete instructions for two working models». L. John Fry, Santa Barbara, CA, USA, p. 45 p., 1973.

W. R. A. - Water Re Association, «Nitrate removal during storage; a review of possible mechanisms and a summary of observed changes», vol. ILR no. 274. W.R.A. - Water Research Association, Medmenham, UK, p. 22 p. : 1 tab., 5 fig., 1973.

P. E. C. E. P. I. S. - Lima, «Nuevos metodos de tratamiento de agua : memorias del simposio realizado en Asuncion, Paraguay, 14-18 Agosto, 1972». Pan American Health Organization (PAHO), Washington, DC, USA, p. 625 pp., 1973.

B. C. J. Zoeteman, «The potential pollution index as a tool for river water quality management», vol. no. 6. IRC, The Hague, The Netherlands, p. 39 p.: fig., tab., photogr., 1973.

G. K. Seth y Saraf, R. K., «Proceedings of a symposium on environmental pollution (CPHERI, Nagpur : January 17-19, 1973)». Central Public Health Engineering Research Institute, Nagpur, India, p. 372 pp. : fig. tab. ref., 1973.

IRC International Water and Sanitation Centre, The Hague, NL, «The purification of water on a small scale», vol. no. 3. IRC, The Hague, The Netherlands, p. 19 p.: fig., 1973.

E. J. M. Kobus y Pieper, J. W., «Putverstopping», vol. nr. 1. KIWA, Rijswijk, The Netherlands, p. 49 p., 1973.

J. Water Reso JM, London, G. B. Inter- Tech, y London, G. B. O. D. A. -, «Report on rainwater catchment project Jamaica». Inter-Technology Services, London, UK, p. v, 92 p. + ca. 50 p. annexes : maps, 1973.

IRC International Water and Sanitation Centre, The Hague, NL, «Reunion de directores de instituciones colaboradas del centro internacional de referencia de la OMS sobre abastecimiento publico de agua, Bilthoven, Paises Bajos, 9 a 13 de abril 1973 : informe». IRC, The Hague, The Netherlands, p. 96 p., 1973.

IDRC -Ottawa, Ont., CA, International Development Research Centre, «Rural water supply and sanitation, Lausanne seminar, 29 May- 1 June, 1973 : working papers no. 1, 4, 8, 11-17». International Development Research Centre (IDRC), Ottawa, Ont, Canada, p. Various paging, 1973.

B. F. C. I. E. H. - Ouagadougou, «Septieme reunion du Conseil, Libreville, 4-10 avril 1973: compte rendu des journees techniques». Comite Interafricain d'Etudes Hydrauliques (CIEH), Ouagadougou, Burkina Faso, p. 167 p., 1973.

S. Siber, «Slow sand filtration for small communities and rural areas», vol. no. 73-02. Middle East Technical University, Faculty of Engineering, Ankara, Turkey, p. 38, 9 p.: graphs, tab., 1973.

A. I. Moller, «Some remarks on ground water conditions and use of geophysical instruments in hard rock (Crystalline Rock) areas based on findings from the WHO/UNICEF assisted village water supply programme in India». UNICEF Regional Office for South Central Asia, New Delhi, India, p. iv, 42 p. : 23 fig., 1973.

M. N. Rao y Sastry, C. A., «Studies on Nirmali seed extract as coagulant aid», Journal of Indian Water Works Association, pp. p. 242-246 : 1 tab., 1973.