Biblio

D. D. Mara, Pearson, H. W., Alabaster, G. P., and Mills, S. W., An evaluation of waste stabilization ponds in Kenya, vol. no. 11. Leeds, UK: University of Leeds, Department of Civil Engineering, 1997, p. x, 109 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.