1997
WHO -Geneva, CH, World Health Organization,
Guidelines for poison control. Geneva, Switzerland: World Health Organization (WHO), 1997, p. xii, 112 p. : tab.
N. L. Calorama - Elburg,
“Hand drilled wells”, vol. no. 3. Calorama Rural Development Service, Elburg, The Netherlands, p. 65 p. : fig., photogr., tab., tech. drwngs., 1997.
J. De Zuane,
Handbook of drinking water quality, 2nd ed.nd ed. New York, NY, USA: Van Nostrand Reinhold, 1997, p. xi, 575 p. : fig., tab.
R. de S.Ariyabandu and Dharmalingam, S.,
“Harvesting rainwater : a means of water security to rural Sri Lanka”. Hector Kobbekaduwa Agrarian Research and Training Institute, Colombo, Sri Lanka, p. 15 p. : 1 map, 7 photogr., 1997.
K. Glanz, Lewis, F. M., and Rimer, B. K.,
Health behaviour and health education : theory, research and practice, 2nd ed.nd ed. San Francisco, CA, USA: Jossey-Bass Publishers, 1997, p. xxx, 496 p. : fig., 33 tab.