R. Semkow et Bessalel, M. M.,
« Assessment of solid waste management in Port-au-Prince, Haiti », vol. no. 292. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xi, 75 p.: fig., photogr., tab., 1990.
T. Triche et Schertenleib, R.,
« Non-government delivery of urban solid waste collection services », vol. no. WS-2. World Bank, Infrastructure and Urban Development Department, Washington, DC, USA, p. 3 p., 1990.
T. A. Triche,
« Private participation in the delivery of Guinea's water supply services », vol. WPS 477. World Bank, Water and Sanitation Division, Washington, DC, USA, p. 30 p.: fig., tab., 1990.
H. A. Mengers, Sarma, S., et D'Cruz, M.,
« Research on community based public-private partnership in the effective management of urban infrastructure », vol. no. 5. Human Settlement Management Institute, New Delhi, India, p. 204 p.: fig., tab., 1990.