1994
D. D. Mara y 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., y 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.
N. L. I. W. T. Founda Amsterdam,
«Mining : Second Water Tribunal», presented at the 1994-01-01, Utrecht, The Netherlands, 1994, vol. vol. 1, p. 304 p.: fig., map, tab.
W. Wiederkehr,
«Policies of tariffs»,
Water supply : the review journal of the International Water Supply Association, pp. p. IR 3.1 - 3.43: fig., tab., 1994.
E. Ministry o EG y IWRA -Urbana, IL, US,
«Satisfying future national and global water demands : proceedings : VIII IWRA world congress on water resources, Cairo, Egypt, November 21 - 25, 1994». International Water Resources Association, Urbana, IL, USA, p. 3 vol. (ca. 700, 700, 100 p.): fig., maps, tab., 1994.
J. Mde Azevedo Netto, Bakalian, A., Wright, A., y Otis, R.,
«Simplified sewerage : design guidelines», vol. no. 7. UNDP-World Bank Water and Sanitation Program, Washington, DC, USA, p. v, 34 p.: 16 fig., 6 tab., 1994.
B. Vereecken y van den Bergh, R.,
Water : three cultures in search of balance. The Hague, The Netherlands: SDU, 1994, p. 208 p.: Mainly photogr.