@book{6609,
	author = {Project Identification and Formulation Workshop on Hygiene Education and Environmental Sanitation in Schools in Viet Nam (1993 : Hanoi). and World Health Organization. Division of Operational Support in Environmental Health.},
	title = {Hygiene education and environmental sanitation in schools in Viet Nam : the report of a Project Identification and Formulation Workshop, Hanoi, 8-10 June 1993.},
	publisher = {World Health Organization,},
	year = {1994.},
	address = {Geneva : }
}