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M. Smith and Ball, S., Waste stabilization ponds, Waterlines, an international journal of water, sanitation and waste, vol. no. 10, pp. p. 15-18 : techn.drwng, 2004.
O. Zimmo, Nitrogen transformations and removal mechanisms in algal and duckweed waste stabilisation ponds. Lisse, The Netherlands: Swets and Zeitlinger, 2003, p. 131 p. : fig., tab.
D. Kone, Epuration des eaux usees par lagunage a microphytes et a macrophytes en Afrique de l'Ouest et du Centre : etat des lieux, performances epuratoires et criteres de dimensionnement, vol. no. 2653. Ecole Polytechnique Federale de Lausanne (EPFLA), Lausanne, Switzerland, p. xv, 170 p. : 35 fig., 39 tab., 2002.
S. Islam, Alam, M. J., Sadique, M. A., Nair, G. B., Sack, D. A., Rahman, M. A., Kabir, M. S., Khan, S. I., Ekramullah, M., Sack, R. B., Huq, A., and Colwell, R. R., Faecal contamination of a fish culture farm where hospital wastewater grown duckweeds are used as fish feed, in Ecosan : closing the loop in wastewater management and sanitation : proceedings of the international symposium, 30-31 October 2000, Bonn, Germany, 2001, pp. P. 289-298 : 4 fig.
D. D. Mara and Pearson, H. W., Design manual for waste stabilization ponds in Mediterranean countries. Leeds, UK: Lagoon Technology International, 1998, p. vii, 112 p. : fig., photogr., tab.
S. M. Oakley, Lagunas de estabilización para tratamiento de aguas negras : las experiencias de Honduras, Nicaragua, El Salvador y Guatemala. Tegucigalpa, Honduras: S.n., 1998, p. 110 p. : tab., graphics, photos, map.
D. D. Mara, Design manual for waste stabilization ponds in India. Leeds, UK: Lagoon Technology International, 1997, p. viii, 125 p. : fig., photogr., tab.
M. Strauss, Treatment of sludges from non-sewered sanitation system, in Workshop on sustainable municipal waste water treatment systems, 12-14 November 1996, Leusden, the Netherlands, 1997, pp. P. 161-184 : 10 fig., 5 tab.
M. Y. Saidam and Butler, D., Algae removal by horizontal flow rock filters, in Advances in slow sand and alternative biological filtration, 1996, pp. P. 327-339 : 8 fig., 2 tab.
D. D. Mara, da Costa, S. M. Vaz, and Bastos, R. K. X., Bacteriological aspects of wastewater irrigation, vol. no. 8. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. xiii, 118 p. : fig., tab.
D. D. Mara, Pearson, H. W., Silva, S. A., de Oliveira, R., Oragui, J. I., and Cawley, L. R., Wastewater storage and treatment reservoirs in Northeast Brazil, vol. no. 12. Leeds, UK: University of Leeds, Department of Civil Engineering, 1996, p. viii, 34 p. : 7 fig., 21 tab.
G. Lettinga and van Haandel, A. C., Anaerobic sewage treatment : a practical guide for regions with a hot climate. Chichester, UK: Wiley, 1994, p. x, 226 p. : fig., tab.
D. D. Mara and Curtis, T. P., The effect of sunlight on mechanisms for the die-off of faecal coliform bacteria in waste stabilization ponds, vol. no. 1. Leeds, UK: University of Leeds, Department of Civil Engineering, 1994, p. x, 94 p.: fig., 1 photogr., tab.
D. D. Mara, Ayres, R., Lee, D., and Stott, R., An experimental evaluation of potential risks to human health from parasitic nematodes in wastewaters treated in waste stabilization ponds and used for crop irrigation, vol. no. 6. Leeds, UK: University of Leeds, Department of Civil Engineering, 1994, p. xii, 73 p. : fig., tab.
I. Ali and Jilani, S., Low cost wastewater treatment for Pakistan, in Water, environment and management : proceedings of the 18th WEDC Conference, Kathmandu, Nepal, 30 August - 3 September 1992, 1993, pp. P. 249-252: 3 fig., 2 tab.
P. E. C. E. P. I. S. - Lima, no. 42. Lagunas de estabilizacion, Repindex. CEPIS (Centro Panamericano de Ingenieria Sanitaria y Ciencias del Ambiente), Lima, Peru, p. p. i-xii, 210 : fig., 1993.
P. E. C. E. P. I. S. - Lima, no. 47. Lagunas de estabilizacion, Repindex. p. xiii, 210 p. : fig., tab., 1993.
R. Huntington and Crook, J., Technological and environmental health aspects of wastewater reuse for irrigation in Egypt and Israel : final project evaluation, vol. no. 418. Environmental Health Project (EHP), Arlington, VA, USA, p. xi, 55 p.: 4 fig., 1 tab., 1993.
J. H. C. M. Oomen and Schellinkhout, A., Anaerobic sewage treatment in Colombia : UASB, a feasible option in warm climates, Land + water international : NEDECO magazine on water, transport, infrastructure and environment, pp. p. 13-15: 1 fig., 4 tab., 2 photogr., 1992.
WHO. Regional Office for the Eastern Mediterranean -Alexandria, EG, EMRO, Design and construction, operation and maintenance and performance monitoring of El Nazlah sewage treatment plant. World Health Organization Eastern Mediterranean Regional Office, Alexandria, Egypt, p. 113 p.: fig., tab., tech. drwngs, photogr., 1992.