Biblio

M. S. Muller, The collection of household excreta : the operation of services in urban low-income neighbourhoods, vol. 6. Pathumthani, Thailand: Environmental Systems Information Center, 1997, p. 73 p. fig., tab.

V. D. Lall, “Drinking water delivery system in urban slum settlements : status, development strategy and action plan”. Society for Development Studies, New Delhi, India, p. 149 p.: 12 chart, 37 tab., 1991.

I. N. National I. Delhi, “Sites and services projects in India's secondary cities : an evaluation study”, vol. no. 23. National Institute of Urban Affairs, New Delhi, India, p. xii, 88 p.: fig., tab., 1988.