Biblio

B. Walker and Bryck, J. M. G., “Waterborne giardiasis-treatment process selection : presented at American Society of Civil Engineers 1984 National Conference on Environmental Engineering, Los Angeles, California, June 25-27, 1984”, presented at the 1984-01-01, New York, NY, USA, 1984, p. 31 p.: drwgs., graf., tab.

L. Huisman, “Rapid filtration : part 1”. Delft University of Technology, Department of Civil Engineering, Delft, The Netherlands, p. figs., 1979.

I. N. Central Pu Nagpur, “Community water supply and waste disposal; vol. 1”. Central Public Health Engineering Research Institute, Nagpur, India, p. xvi +184 p. : fig., tab., 1966.