U. J. Blumenthal, Manderson, L., and Almedom, A. M.,
Hygiene evaluation procedures : approaches and methods for assessing water- and sanitation-related hygiene practices. Boston, MA, USA: International Nutrition Foundation for Developing Countries, 1997, p. iv, 122 p. : 25 boxes, 6 fig., 3 pl., 4 tab.
