A. Prins and Yacoob, M.,
“Adding guinea worm control components : guidelines for water and sanitation projects”, vol. no. 51. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. iii, 73 p.: fig., tab., 1988.
G. Smethurst,
Basic water treatment for application world-wide, 2nd ed.nd ed. London, UK: Thomas Telford, 1988, p. 216 p.: fig., tab.
IDRC -Ottawa, Ont., CA, International Development Research Centre and IRC International Water and Sanitation Centre, The Hague, NL,
Handpumps : issues and concepts in rural water supply programmes, vol. no. 25. The Hague, The Netherlands: IRC, 1988, p. xi, 163 p.: fig., tab.
S. Cairncross,
Small scale sanitation, 3rd ed.rd ed., vol. no. 8. London, UK: Ross Institute of Tropical Hygiene, 1988, p. x, 60 p. : fig., tab., pl.
R. W. Porter and Yacoob, M.,
“Social marketing and water supply and sanitation : an integrated approach”, vol. no. 221. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vi, 28 p.: fig., ill., 1988.