Biblio

A. Mayo, Bacterial die-off in waste stabilization ponds receiving domestic wastewater in Dar es Salaam, Tanzania, vol. no. 36. Tampere, Finland: Tampere University of Technology, Institute of Water and Environmental Engineeri, 1988, p. 69 p.: fig., tab.

L. Huisman and Olsthoorn, T. N., Artificial groundwater recharge. London, UK: Pitman Books, 1983, p. xiii, 320 p.: fig., tab.