T. R. Environmen Istanbul,
« Environmental management for developing countries : preprints. Vol. I ». Environmental Technology Research and Development Center, Istanbul, Turkey, p. ca 250 p. : fig., tab., 1984.
T. R. Environmen Istanbul,
« Environmental management for developing countries : preprints. Vol. II ». Environmental Technology Research and Development Center, Istanbul, Turkey, p. ca 250 p. : fig., tab., 1984.
D. Donaldson,
Evaluation of the CARE water supply program in Kenya, vol. no. 106. Arlington, VA, USA: Water and Sanitation for Health Project (WASH), 1984, p. v, 50 p.: fig., tab.
WHO -Geneva, CH, World Health Organization,
« Why action lines '84? ». World Health Organization (WHO), Geneva, Switzerland, p. 18 p., 1984.